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Chemical Structure| 1035373-85-3 Chemical Structure| 1035373-85-3
Chemical Structure| 1035373-85-3

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Synonyms: 2-(2-(6-chlorohexyloxy)ethoxy)ethanamine hydrochloride

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Product Details of 2-(2-(6-chlorohexyloxy)ethoxy)ethanamine HCl

CAS No. :1035373-85-3
Formula : C10H23Cl2NO2
M.W : 260.20
SMILES Code : NCCOCCOCCCCCCCl.[H]Cl
Synonyms :
2-(2-(6-chlorohexyloxy)ethoxy)ethanamine hydrochloride
MDL No. :MFCD32706550
InChI Key :KRGPBUVQAULFOQ-UHFFFAOYSA-N
Pubchem ID :89239696

Safety of 2-(2-(6-chlorohexyloxy)ethoxy)ethanamine HCl

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Application In Synthesis of 2-(2-(6-chlorohexyloxy)ethoxy)ethanamine HCl

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1035373-85-3 ]

[ 1035373-85-3 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 1035373-85-3 ]
  • C41H49N3O13S3 [ No CAS ]
  • sodium 2-((1E,3Z)-3-(1-(6-(2-(2-(6-chlorohexyloxy)ethoxy)ethylamino)-6-oxohexyl)-1-methyl-9-sulfonato-5,6-dihydro-1H-pyrrolo[3,2,1-ij]quinolin-2(4H)-ylidene)prop-1-enyl)-1-methyl-1-(4-sulfonatobutyl)-1,4,5,6-tetrahydropyrrolo[3,2,1-ij]quinolinium-9-sulfonate [ No CAS ]
YieldReaction ConditionsOperation in experiment
In N,N-dimethyl-formamide; for 4h; [00196] Sodium 2-((l£,3Z)-3-(l-(6-(2-(2-(6-chlorohexyloxy)ethoxy)ethylamino)-6- oxohexyl)-l-methyl-9-sulfonato-5,6-dihydro-lH-pyrrolo[3,2,l-//]quinolin-2(4H)- ylidene)prop-l-enyl)-l-methyl-l-(4-sulfonatobutyl)-l,4,5,6-tetrahydropyrrolo[3,2,l- //]quinolinium-9-sulfonate (PBI 3838). To the above dye in the free acid form (60 mg, 0.078 mmol) dissolved in 5 mL DMF was added Λ/,Λ/,N',Λ/r'-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate (32.4 mg, 0.11 mmol) and 37.5 μL diisopropylethylamine. The reaction was stirred 0.5 hr in the dark before the addition of 2-(2-(6-chlorohexyloxy)ethoxy)ethanaminium chloride (28.0 mg, 0.11 mmol). The reaction was stirred for 4 hrs, diluted with water and purified by RP-ΗPLC giving desired product (85.0 mg, 46.7 %) as a blue solid. MS m/z calculated for C47H66 Cl3N3Na2Oi2S3 (M+HC1): 1076.3 Found 1076.5 (M +HCl, ESI+).
  • 4
  • [ 1035373-85-3 ]
  • [ 1439931-63-1 ]
  • [ 1439931-65-3 ]
YieldReaction ConditionsOperation in experiment
6 mg Example 27. Bis(piperidineazepino)-5-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)sulfonyl) sulforhodamine (PBI [00188] A solution of bis(piperidineazepino)-3,5-bissulforhodamine (PBI 3904, 70 mg) in POCI3 (2 mL) and THF (2 mL) was stirred for 1 hour and then concentrated under reduced pressure. This crude sulfonyl chloride was dissolved in CH2C12 (5 mL), and triethylamine (0.23 mL) and 2-(2-((6-chlorohexyl)oxy)ethoxy)ethylamine HC1 (43 mg) were added. After stirring for 3 days, the reaction mixture was concentrated. The crude product was dissolved in DMF and purified by preparative HPLC (gradient of ACN in 0.1% TFA in H20) to provide the title compound (6 mg) as a blue solid: MS expected 840 (C43H54CI 3O8S2 , M+), found 840.
  • 5
  • [ 1035373-85-3 ]
  • C35H35N2O5(1+) [ No CAS ]
  • [ 1439931-49-3 ]
YieldReaction ConditionsOperation in experiment
1 mg Example 21. Bis(piperidineazepino)-6-((2-(2-((6-chlor ohexyl)oxy)ethoxy)ethyl)- carbamoyl)rhodamine [00182] To a solution of bis(piperidineazepino)-6-carboxyrhodamine (10 mg) and diisopropylethylamine (0.02 mL) in DMF (1 mL), TSTU (8 mg) was added. After stirring for 1 minutes, 2-(2-((6-chlorohexyl)oxy)ethoxy)ethylamine HC1 (7 mg) was added, which was synthesized according to the procedure described in H. Benink, M. McDougall, D. Klaubert, G. Los, BioTechniques 2009, 47, 769-774 (which is incorporated by reference herein). After stirring another 30 minutes, the reaction mixture was purified by preparative HPLC (gradient of ACN in 0.1% TFA in H20) to provide the title compound (1 mg) as a blue solid: MS expected 769 (C45H55C1N306+, M+), found 769.
  • 6
  • [ 1035373-85-3 ]
  • [ 59-05-2 ]
  • [ 1613616-96-8 ]
YieldReaction ConditionsOperation in experiment
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; In N,N-dimethyl-formamide; for 3h; 50 mg of methotrexate hydrate was stirred in 3 mL of DMF and treated with ED AC (63 mg, 330 umol) and triethylamine (77 uL, 550 umol). After 10 min, 12-chloro-3, 6-dioxo- dodecylamine hydrocholide (21.5 mg, 83 umol) was added. After 3 h, the product was isolated by preparative HPLC (2->50% MeCN in 0.1% aqueous formic acid). The appropriate fractions were concentrated and lyophilized to yield an orange solid. Calculated for M+H: 660.3; found 660.7
  • 7
  • [ 1035373-85-3 ]
  • C40H43N7O6 [ No CAS ]
  • C50H63ClN8O7 [ No CAS ]
YieldReaction ConditionsOperation in experiment
25 mg With O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; for 36h; Resorcinol (3.31 g, 30 mmol) was dissolved in 10 mL of DMF, and K2C03 (3.32 g, 24 mmol) added. The mixture was stirred until all solid had dissolved, and the reaction turned a dark brown. 6-Bromohexanoate ethyl ester (4.69 g, 21 mmol) was added all at once, the reaction stirred overnight, and then poured into 1 M HCl and extracted with 3 x 50 mL EtOAc. The combined organic layers were washed with brine, then adsorbed onto Celite and subjected to column chromatography eluting with 0->50% EtOAc in heptanes. Calculated for M+H: 254.1; found 253.8. Ethyl 6-(3-hydroxyphenoxy)hexanoate (0.96 g, 3.8 mmol) was dissolved in a mixture of MeOH and H20, and LiOH hydrate (639 mg, 15.2 mmol) added. After 2 h, the reaction was concentrated under reduced pressure and then acidified with 1 M HCl to give a white precipitate, which yielded 550 mg of a white solid after filtration and drying under vacuum. Calculated for M+H: 225.1; found 225.2 Ethyl 4-aminobenzoate (405 mg, 2.45 mmol) was stirred in 7.7 mL of a mixture of acetone/2 N HC1 in an ice bath. A solution of sodium nitrite (215 mg, 3.12 mmol) dissolved in 8 mL of H20 was added dropwise over 10 min, and the reaction was stirred for an additional 20 min. The reaction was then added dropwise over 20 min to a stirred solution of 6-(3-hydroxyphenoxy)hexanoate in 18 mL of 1 N NaOH in an ice bath, generating a dark red color. Stirring and cooling was continued for 40 min, and the reaction was then neutralized with 1 N HC1 and diluted with water. The resulting brown precipitate was collected by filtration and directly carried on to the next step. To a solution of the carboxylic acid from the previous step (50mg, 0.12 mmol) in DMF (4mL), 1 -( 1 -(4-(aminomethyl)phenyl)-3 -tertbutyl- 1 H-pyrazol-5 -yl)-3 -(naphthalen- 1 -yl) urea (50mg, 0.14mmol), ethyl dimethylaminopropylcarbodiimide (EDAC, 30mg, 0.16mmol) and 1-hydroxybenzotriazole (HOBt, 22mg, 0.16mmol) was added. After stirring for 40h, the reaction was partitioned between EtOAc and NaHC03 (sat. aq.), the layers separated and the organic layer washed with water and NaCl (sat. aq.), dried and concentrated. The resulting red solid was purified by preparative HPLC (10%->100% ACN in 0.1% aqueous TFA) and subsequent concentration yielded 44 mg of an orange solid. Calculated for M+H: 745, found 745. To a solution of the ester from the previous reaction (44mg, 0.06mmol) in THF (3mL), NaOH (IN, ImL) was added. After stirring for 8 days, the reaction was acidified and purified by preparative HPLC (10%>->100%> ACN in 0.1%> aqueous TFA) and subsequently concentrated to yield 25 mg of an orange solid. Calculated for M+H: 717, found 717. To a solution of the carboxylic acid (14mg, 0.02mmol) from the previous reaction in DMF (2mL), N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate (TSTU, 12mg, 0.04mmol) and diisopropylethylamine O. lmmol) was added. After stirring for 30min, 2-[2-(6-chloro-hexyloxy)-ethoxy]-ethylammonium hydrochloride (Promega, lOmg, 0.04mmol) was added. After stirring for 36h, the reaction was acidified and purified by preparative HPLC (10%>->100%> ACN in 0.1 % aqueous TFA) and subsequently concentrated to yield 25 mg of PBI 5131 as an orange solid. Calculated for M+H: 923, found 923.
  • 8
  • [ 1035373-85-3 ]
  • N-(9-(2,5-dicarboxyphenyl)-6-(4-(35,35-dimethyl-3,17,33-trioxo-4,7,10,13,16,22,25,28,34-nonaoxa-2,18,32-triazahexatriacontyl)piperidin-1-yl)-3H-xanthen-3-ylidene)-N-methylmethanaminium [ No CAS ]
  • N-(9-(2-carboxy-5-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamoyl)phenyl)-6-(4-(35,35-dimethyl-3,17,33-trioxo-4,7,10,13,16,22,25,28,34-nonaoxa-2,18,32-triazahexatriacontyl)piperidin-1-yl)-3H-xanthen-3-ylidene)-N-methylmethanaminium [ No CAS ]
  • 9
  • [ 1035373-85-3 ]
  • 2,2'-(7-(1-carboxy-4-((4-isothiocyanatobenzyl)amino)-4-oxobutyl)-1,4,7-triazonane-1,4-diyl)diacetic acid [ No CAS ]
  • C33H53ClN6O9S [ No CAS ]
  • 10
  • trans-4-cycloocten-yl 2,5-dioxo-1-pyrrolidinyl ester carbonic acid [ No CAS ]
  • [ 1035373-85-3 ]
  • (E)-cyclooct-4-en-l-yl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate [ No CAS ]
  • 11
  • [ 1035373-85-3 ]
  • C15H19NO5 [ No CAS ]
  • ((1R,8S,9s,E)-bicyclo[6.1.0]non-4-en-9-yl)methyl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate [ No CAS ]
  • 12
  • [ 1035373-85-3 ]
  • C17H19NO7 [ No CAS ]
  • ((3aR,9aS,E)-3a,4,5,8,9,9a-hexahydrocycloocta[d][1,3]dioxol-2-yl)methyl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate [ No CAS ]
  • 13
  • [ 1035373-85-3 ]
  • (+/-)-norbornen-(5)-yl-(2<i>endo</i>)-acetic acid [ No CAS ]
  • C19H32ClNO3 [ No CAS ]
  • 14
  • [ 1035373-85-3 ]
  • [ 1407593-28-5 ]
  • C15H26ClNO3 [ No CAS ]
  • 15
  • [ 1035373-85-3 ]
  • 4-((4-(6-methyl-1,2,4,5-tetrazin-3-yl)benzyl)amino)-4-oxobutanoic acid [ No CAS ]
  • N<SUP>1</SUP>-(2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)-N<SUP>4</SUP>-(4-(6-methyl-1,2,4,5-tetrazin-3-yl)benzyl)succinamide [ No CAS ]
  • 16
  • [ 1035373-85-3 ]
  • [ 1353016-71-3 ]
  • N-(2-(2-[(6-chlorohexyl)oxy]ethoxy)ethyl)-4-(11,12-didehydrodibenzo[b,f]azocin-5(6H)-yl)-4-oxobutanamide [ No CAS ]
  • 17
  • [ 1035373-85-3 ]
  • (1R,8S)-bicyclo[6.1.0]non-4-yn-9-ylmethyl (2,5-dioxopyrrolidin-1-yl) carbonate [ No CAS ]
  • ((1R,8S)-bicyclo[6.1.0]non-4-yn-9-yl)methyl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate [ No CAS ]
  • 18
  • [ 1035373-85-3 ]
  • [ 135920-28-4 ]
  • C17H33ClN4O3 [ No CAS ]
  • 19
  • [ 1035373-85-3 ]
  • rhodol N-Oxide [ No CAS ]
  • rhodol N-Oxide [ No CAS ]
  • 20
  • [ 1035373-85-3 ]
  • C18H25NO9 [ No CAS ]
  • C22H42ClNO8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
68% With triethylamine; In acetonitrile; for 18h; To a solution of S72 (820 mg, 2.05 mmol) in MeCN (20 mL), 2-(2-((6-chlorohexyl)oxy)ethoxy)ethan-1-amine hydrochloride (S07) (588 mg, 2.26 mmol) was added, followed by trimethylamine (1.43 mL, 10.3 mmol). The resulting yellow solution was stirred for 18 hours, at which point TLC analysis indicated complete consumption of starting material. The reaction mixture was concentrated approximately under vacuum and purified by silica gel chromatography (0→100% EtOAc/Heptane) to provide 674 mg (68% yield) of S73 as a clear oil. 1H NMR (300 MHz, DMSO-d6) δ 7.16 (t, J=5.5 Hz, 1H), 4.16-3.89 (m, 2H), 3.72-3.53 (m, 6H), 3.53-3.43 (m, 8H), 3.38 (m, 4H), 3.11 (q, J=6.0 Hz, 2H), 2.41 (t, J=6.2 Hz, 2H), 1.70 (dq, J=8.0, 6.5 Hz, 2H), 1.58-1.44 (m, 2H), 1.39 (s, 13H); 13C NMR (75 MHz, DMSO-d6) δ 170.4, 156.2, 79.7, 70.2, 69.6, 69.5, 69.4, 69.1, 68.8, 66.2, 63.1, 45.3, 35.8, 32.0, 29.0, 27.7, 26.1, 24.9; MS (ESI+) calc'd for C22H42ClNNaO8+ [M+Na]+ 506.3, found 506.2
  • 21
  • [ 1035373-85-3 ]
  • C27H43NO14 [ No CAS ]
  • C31H60ClNO13 [ No CAS ]
YieldReaction ConditionsOperation in experiment
85% With triethylamine; In acetonitrile; for 20h; To a solution of SL_0723 (27 mg, 45 μmol) in MeCN (7 mL), J1454T (13 mg, 50 μmol) was added, followed by NEt3 (31 μL, 0.22 mmol). The resulting yellow solution was allowed to react for 20 hours, at which point TLC analysis indicated complete consumption of starting material. Solvent was removed under vacuum, and crude residue was purified by silica gel chromatography (0→10% MeOH/DCM) to provide 26 mg (85% yield) of SL_0725 as a yellow oil. 1H NMR (300 MHz, DMSO-d6) δ 7.18 (t, J=5.1 Hz, 1H), 5.74-5.67 (m, 2H), 4.55 (t, J=5.4 Hz, 1H), 4.07-4.01 (m, 2H), 3.99-3.84 (m, 4H), 3.62 (t, J=6.6 Hz, 2H), 3.58-3.44 (m, 32H), 3.44-3.33 (m, 6H), 3.11 (q, J=5.9 Hz, 2H), 1.70 (p, J=6.7 Hz, 2H), 1.49 (p, J=6.8 Hz, 2H), 1.43-1.22 (s, 4H); MS (ESI+) calc'd for C3J-161ClNO13+ [M+H]+ 690.38, found 690.62.
  • 22
  • [ 1035373-85-3 ]
  • C18H23NO8 [ No CAS ]
  • C22H40ClNO7 [ No CAS ]
YieldReaction ConditionsOperation in experiment
75% With triethylamine; In tetrahydrofuran; at 22℃; for 20h; To a solution of SL_0209 (307 mg, 805 μmol) in THF (20 mL) was added J1454T (230 mg, 886 μmol) followed by triethylamine (340 μL, 2.41 mmol), white precipitate forms (NEt3HCl). The resulting suspension was left stirred at 22 C. for 20 hours at which point TLC analysis indicated complete consumption of starting material. The solvent was removed in vacuo, and the residue was purified by silica gel chromatography (0→60% EtOAc/hexanes) to provide 280 mg (75% yield) of SL_0210 as a clear oil. 1H NMR (300 MHz, CDCl3) δ 5.82-5.66 (m, 2H), 5.29 (br. s, 1H), 4.63 (m, 1H), 4.31-4.19 (m, 3H), 4.14-4.04 (m, 3H), 3.89-3.79 (m, 1H), 3.65-3.50 (m, 11H), 3.49-3.44 (m, 2H), 3.40-3.33 (m, 2H), 1.84-1.72 (m, 3H), 1.54-1.57 (m, 6H, overlap with H2O), 1.94-1.31 (m, 5H, overlap with H2O). MS (ESI+) calc'd for C22H41ClNO7+ [M+H]+ 466.25, found 466.43.
  • 23
  • [ 1035373-85-3 ]
  • C18H23NO8 [ No CAS ]
  • C22H40ClNO7 [ No CAS ]
YieldReaction ConditionsOperation in experiment
74% With triethylamine; In tetrahydrofuran; at 22℃; for 5h; To a solution of SL_0469 (104 mg, 273 μmol) in THF (10 mL) was added J1454T (78 mg, 300 μmol) followed by triethylamine (190 μL, 1.36 mmol), white precipitate forms (NEt3HCl). The resulting suspension was left stirred at 22 C. for 5 hours at which point TLC analysis indicated complete consumption of starting material. The solvent was removed in vacuo, and the residue was purified by silica gel chromatography (0→100% EtOAc/hexanes) to provide 94 mg (74% yield) of SL_0476 as a clear oil. 1H NMR (300 MHz, DMSO-d6) δ 7.17 (t, J=5.6 Hz, 1H), 5.82-5.67 (m, 2H), 4.58 (s, 1H), 4.12 (m, 1H), 4.05 (m, 2H), 3.97-3.87 (m, 3H), 3.73 (m, 1H), 3.62 (t, J=6.6 Hz, 2H), 3.53 (m, 2H), 3.49-3.45 (m, 5H), 3.42-3.34 (m, 4H), 3.11 (q, J=6.0 Hz, 2H), 1.75-1.57 (m, 3H), 1.54-1.23 (m, 11H).
  • 24
  • [ 1035373-85-3 ]
  • C23H32N2O11 [ No CAS ]
  • C27H49ClN2O10 [ No CAS ]
YieldReaction ConditionsOperation in experiment
64% With triethylamine; In tetrahydrofuran; at 22℃; for 2h; To a solution of SL_0493 (220 mg, 429 μmol) in THF (15 mL) was added J1454T (117 mg, 451 μmol) followed by triethylamine (120 μL, 859 μmol), murky solution forms ( NEt3.HCl precipitates). The resulting suspension was left stirred at 22 C. for 2 hours at which point TLC analysis indicated complete consumption of starting material. The solvent was removed in vacuo, and the residue was purified by silica gel chromatography (0→100% EtOAc/Heptane) to provide 164 mg (64% yield) of SL_0495 as a clear oil. 1H NMR (300 MHz, DMSO-d6) δ 7.17 (t, J=5.6 Hz, 2H), 5.78 (m, 2H), 4.58 (m, 1H), 4.45 (m, 2H), 4.13 (dd, J=13.1, 3.8 Hz, 1H), 4.04 (m, 2H), 3.91 (dd, J=13.0, 4.3 Hz, 1H), 3.72 (ddd, J=11.4, 7.9, 3.4 Hz, 1H), 3.62 (t, J=6.6 Hz, 2H), 3.55 (dd, J=5.6, 3.9 Hz, 2H), 3.52-3.44 (m, 8H), 3.43-3.34 (m, 7H), 3.12 (m, 4H), 1.78-1.58 (m, 4H), 1.55-1.42 (m, 6H), 1.42-1.25 (m, 4H). MS (ESI+) calc'd for C22H42ClN2O9+ [M-THP+H]+ 513.26, found 513.2.
  • 25
  • [ 1035373-85-3 ]
  • C17H25NO6Si [ No CAS ]
  • C21H42ClNO5Si [ No CAS ]
YieldReaction ConditionsOperation in experiment
80% With triethylamine; In tetrahydrofuran; for 18h; To a solution of SL_0160 (400 mg, 1.09 mmol) was added 2-(2-((6-chlorohexyl)oxy) ethoxy) ethylamine hydrochloride (312 mg, 1.20 mmol) followed by Et3N (290 μL, 20.7 mmol). The resulting yellow solution was left stirred for 18 hours at which point TLC indicated consumption of the starting material. The reaction mixture was absorbed on silica and purified by silica gel chromatography (0→30% EtOAc/hexanes) to provide 395 mg (80% yield) of SL_0161 as a clear oil. 1H NMR (300 MHz, CDCl3) δ 5.71 (dt, J=11.4, 5.7 Hz, 1H), 5.56 (dt, J=11.3, 6.2 Hz, 1H), 5.19 (br. s, 1H), 4.63 (d, J=6.2 Hz, 2H), 4.27 (d, J=5.7 Hz, 2H), 3.67-3.50 (m, 8H), 3.47 (t, J=6.6 Hz, 2H), 3.37 (q, 5.2 Hz, 2H), 1.78 (p, J=6.8 Hz, 2H), 1.60 (p, J=6.8 Hz, 2H), 1.44-1.32 (m, 4H), 0.90 (s, 9H), 0.07 (s, 6H).
  • 26
  • [ 1035373-85-3 ]
  • (E) 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)buty (4-nitrophenyl)carbonate.AgNO3 [ No CAS ]
  • silver nitrate [ No CAS ]
  • C22H42ClNO4Si*Ag(1+)*NO3(1-) [ No CAS ]
YieldReaction ConditionsOperation in experiment
40%Spectr. 0.255 mmol of (E) 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)butyl (4- nitrophenyl) carbonate silver complex was treated with 2 mL dichloromethane and 2mL brine. Organic layer was separated. The aqueous layer was extract with 1.3 mL dichloromethane. The organic layer was combined and dried with Na2SO4. The dichloromethane solution of (E) 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)butyl (4-nitrophenyl) carbonate was transferred to a 10 mL flame-dried flask. Then 2-(2-((6- chlorohexyl)oxy)ethoxy)ethanamine hydrochloride (33.2 mg, 0.12 mmol, 1.0 equiv)and TEA (88. 9 pL, 0.64 mmol, 5.3 equiv) was added to the solution. The reaction was stirred at room temperature over 2.5 h. After reaction, the mixture was loaded onto silica gel column directly. Purification by flash column chromatography (10% acetone/hexane, Rf=) afforded 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)butyl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate as a solution in acetone/hexane.The solution was loaded onto a plug of 265 mg silica gel (impregnated with 10% w/w AgNO3), which was packed in an hg Biotage SNAP cartridge (contained a bed of unmodified silica gel). The SNAP cartridge was eluted with 100 mL 30% acetone/hexane over 2.5 h. Then the silica gel column was washed with 100 mL 30% acetone/hexane, followed by 150 mL EtCH to give the desired EtCH solution of 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)butyl (2-(2-((6- chlorohexyl)oxy)ethoxy)ethyl)carbamate. The ethanol solution was concentrated via rotary evaporation, affording the 4-(1-methyl-2,3,6,7-tetrahydro-1H-silepin-1-yl)butyl (2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamate silver complex (40% NMR yield) as white sticky oiL 1H NMR (600 MHz, MeOD) O: 5.61-5.53 (m, 2H), 4.04 (t, J=6.3 Hz,2H), 3.61-3.55 (m, 6H), 3.53 (t, J=5.6 Hz, 2H), 3.49 (t, J=6.6 Hz, 2H), 3.28 (t, J=5.5Hz, 2H), 2.55-2.52 (m, 2H), 2.33-2.27 (m, 2H), 1.80-1.75 (m, 2H), 1.66-1.58 (m, 4H),1.47 (dt, J=l4.4, 7.1 Hz, 2H), 1.42-1.36 (m, 4H), 1.09-1.05 (m, 1H), 1.03-0.98 (m,1H), 0.88 (dt, J=14.8, 7.5 Hz, 1H), 0.82 (dt, J=14.S, 7.6 Hz, 1H), 0.63-0.54 (m, 2H),0.02 (s, 3H); 13C NMR (150MHz, MeOD) ö: 120.1 (CH), 119.9 (CH), 72.2 (CH2), 71.2(CH2), 71.1 (CH2), 71.0 (CH2), 65.4 (CH2), 45.7 (CH2), 33.9 (CH2), 33.7 (CH2), 30.5(CH2), 28.73 (CH2), 28.69 (CH2), 27.7 (CH2), 26.4 (CH2), 21.1 (CH2), 18.81 (CH2),18.78 (CH2), 16.2 (CH2), -2.8 (CH3).
  • 27
  • [ 1035373-85-3 ]
  • [ 7693-46-1 ]
  • [ 302962-49-8 ]
  • C33H46Cl2N8O5S [ No CAS ]
YieldReaction ConditionsOperation in experiment
30% Dasatinib (15 mg, 31 umol)P-Nitrophenyl chloroformate(8. 4 mg, 42 umol, 1.36 equiv)And 10 μL of TEA in 1.8 mL of DMF: THF (2: 1).The reaction was stirred overnight and then added as a solution in DMF2- (2 - ((6-chlorohexyl) oxy) ethoxy) ethan-1-amine hydrochloride(32 mg, 4 equiv)Was added.Additional TEA was also added and the reaction was stirred overnight again.Preparative HPLC (20 - & gt; 60% MeCN in 0.1% aqueous TFA) gave colorlessThe desired product was obtained as a residue (6.7 mg, 30% yield).
  • 28
  • [ 1035373-85-3 ]
  • methotrexate [ No CAS ]
  • C30H44ClN9O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
50 mg of methotrexate hydrate,Stir in 3 mL of DMF,EDAC (63 mg, 330 umol) and triethylamine (77 uL, 550 umol).After 10 minutes, 2- (2 - ((6-chlorohexyl) oxy) ethoxy) ethylamine hydrochloride (Promega 21.5 mg, 83 umol) was added.After 3 h, the product was isolated by preparative HPLC (2-> 50% MeCN in 0.1% aqueous formic acid).Appropriate fractions were concentrated and lyophilized to give an orange solid.
  • 29
  • 2,5-dioxopyrrolidin-1-yl 3-(((tert-butoxycarbonyl)amino)methyl)benzoate [ No CAS ]
  • [ 1035373-85-3 ]
  • tert-butyl 3-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamoyl)benzylcarbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
56.4% With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide;Sealed tube; To a solution of 2,5-dioxopyrrolidin-1-yl 3-(((tert-butoxycarbonyl)amino)methyl)benzoate (50.0 mg, 1.14 mmol) in 10 mL DMF, 2-(2-((6-chlorohexyl)oxy)ethoxy)ethanamine-HCl (53.0 mg, 0.22 mmol) and N,N-diisopropylethylamine (0.14 mL, 0.79 mmol) was added. The reaction was capped and stirred overnight. Volatiles were removed under reduced pressure giving a yellow solid that was dissolved in DCM, absorbed on celite, dried and subjected to flash chromatography (EtOAc/Hep) purification giving the product (37.0 mg, 56.4%) as a white solid. 1H-NMR (300 MHz, CDCl3) δ 7.61 (m, 1H), 7.63 (m, 1H), 7.40 (m, 1H), 4.34 (d, 5.7 Hz, 1H), 3.54 (m, H), 1.72 (m, 2H), 1.53 (s, 9H), 1.44 (s, 9H). MS (ESI) m/z calcd for C23H38ClN2O5 (M+H+) 457.2. found 457.2.
  • 30
  • [ 282718-81-4 ]
  • [ 1035373-85-3 ]
  • tert-butyl 4-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamoyl)benzylcarbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
48.8% With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide;Sealed tube; To a solution of 2,5-dioxopyrrolidin-1-yl 4-(((tert-butoxycarbonyl)amino)methyl)benzoate (50.0 mg, 0.14 mmol) in 10 mL DMF, 2-(2-((6-chlorohexyl)oxy)ethoxy)ethanamine-HCl (42.4 mg, 0.17 mmol) and N,N-diisopropylethylamine (0.13 mL, 0.72 mmol) was added. The reaction was capped and stirred overnight. Volatiles were removed under reduced pressure giving a yellow solid that was dissolved in EtOAc, washed with water, dried over Na2SO4 and concentrated. The residue was dissolved in DCM, absorbed on celite, dried and subjected to flash chromatography (EtOAc/Hep) purification giving the product (32.0 mg, 48.8%) as a white solid. 1H-NMR (300 MHz, CDCl3) δ 7.73 (d, 8.4 Hz, 2H), 7.32 (d, 8.4 Hz, 2H), 4.34 (d, 6.6, 2H), 3.65-3.42 (m, 8H), 2.75 (m, 4H), 1.5 (s, 9H) 1.2 (m, 10H). MS (ESI) m/z calcd for C23H38ClN2O5 (M+H+) 457.2. found 457.7.
  • 31
  • [ 1035373-85-3 ]
  • 2,5-dioxopyrrolidin-1-yl 4-(((tert-butoxycarbonyl)amino)methyl)cyclohexanecarboxylate [ No CAS ]
  • tert-butyl ((4-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamoyl)cyclohexyl)methyl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
39.3% With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide;Sealed tube; To a solution of 2,5-dioxopyrrolidin-1-yl 4-(((tert-butoxycarbonyl)amino)methyl)cyclohexanecarboxylate (81.7 mg, 0.14 mmol) in 5 mL DMF, 2-(2-((6-chlorohexyl)oxy)ethoxy)ethanamine-HCl (50.0 mg, 0.19 mmol) and N,N-diisopropylethylamine (0.10 mL, 0.57 mmol) was added. The reaction was capped and stirred overnight. Volatiles were removed under reduced pressure giving a yellow residue that was dissolved in DCM, absorbed on celite, dried and subjected to flash chromatography (MeOH/DCM) purification giving the product (35.0 mg, 39.3%) as a white solid.
  • 32
  • [ 1035373-85-3 ]
  • 2-(4-(6-methyl-1,2,4,5-tetrazin-3-yl)phenyl)acetic acid N-hydroxysuccinimide ester [ No CAS ]
  • 4-(4-(6-methyl-1,2,4,5-tetrazin-3-yl)benzyl)-N-(2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)amide [ No CAS ]
  • 33
  • [ 920264-35-3 ]
  • [ 1035373-85-3 ]
YieldReaction ConditionsOperation in experiment
98% With hydrogenchloride; In 1,4-dioxane; at 20℃; for 2h; 700 mg (2.16 mmol, 1.0 eq) product of step 14.3 was dissolved in 2.5 mL 4 M HC1 in dioxane (9.73 mmol, 4.55 eq) and was stirred at room temperature for 2 hours. The solvent was removed in vacuum and the product was obtained as white solid, which was used without further purification.
With hydrogenchloride; In 1,4-dioxane; at 20℃; for 1h; Commercially available chloro- alcohol was converted into tosylate. Condition (a) 6-Chloro-l-hexanol (1.0 eq.), p- Toluenesulfonyl chloride (1.1 eq), 4-dimethylaminopyridine (0.1 eq) in pyridine for 1.5 hours at 0C. The reaction mixture was extracted with diethyl ether against diluted HC1. The organic phase was collected and evaporated under reduced pressure, yielding crude colorless crystal 6. The product was carried on to the next step without further purification. Commercially available amino-alcohol was protected with t-butyl carbonate group. Condition (b) 2-(2- (0303) Aminoethoxy)ethanol (1.0 eq.), Di-tert-butyl dicarbonate (1.0 eq.) in methanol stirred for 3 h at room temperature. The reaction mixture was extracted with PBS Buffer against dichloromethane. The organic fraction was dried in vacuo. Compounds were further purified by flash chromatography (1 :1 ethyl acetate/hexane) to yield 7, a colorless oil. 6 and 7 were combined to become protected PEG linker. Condition (c) 6 (1 eq), 7 (1.1 eq), and Potassium tert-butoxide (1 M in THF, 1.5 eq) in DMF stirred overnight at room temperature. The reaction was quenched with water and extracted with diethyl ether. The product was further purified by flash chromatography (1 :2 ethyl acetate: hexane). Colorless oil 8 was obtained. Deprotection of 8 yielded the PEG amine hydrochloride. Condition (d) 8 (1 eq), HC1 (4 M in Dioxane, 6 eq) stirred for 1 h at room temperature. Concentrated and then dried under high-vac to yield 9 a white solid.
With hydrogenchloride; In 1,4-dioxane; at 20℃; for 1h; Add 1 equivalent of compound 8, 6 equivalents of HCl (4M in Dioxane) at room temperature, and mix and stir for 1 h. After the reaction is complete, filter with suction and dry in vacuo to obtain a white solid, namely compound 9
  • 34
  • [ 1035373-85-3 ]
  • trans-4-(tert-butoxycarbonylamino)cyclohexanoic acid [ No CAS ]
  • tert-butyl ((1r,4r)-4-((2-(2-((6-chlorohexyl)oxy)ethoxy)ethyl)carbamoyl)cyclohexyl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; at 20℃; Commercially available cyclohexane linker was coupled with homemade PEG linker. Condition (e) 9 (1 eq.), trans-4-[[(l,l-Dimethylethoxy)carbonyl]amino]cyclohexanecarboxylic acid (1 eq.), dimethylaminopyridine (0.1 eq.), N-(3-Dimethylaminopropyl)-N’-ethylcarbodiimide hydrochloride (2 eq.) in triethylamine (4 eq.) stirred overnight at room temperature. The reaction mixture was quenched by water and extracted with DCM. Product was purified by flash chromatography (100% ethyl acetate). Sticky white solid 10 was obtained. Deprotection was of 10 yields final rigid linker amine hydrochloride. Condition (f) 10 (1 eq.), in HC1 (4 M in Dioxane, 6 eq.) for lh at room temperature. Reaction was concentrated and put under high-vac to yield fluffy white solid 11
  • 35
  • (1R,8S,9ξ)-bicyclo[6.1.0]non-4-yn-9-ylmethyl (4-nitrophenyl) carbonate [ No CAS ]
  • [ 1035373-85-3 ]
  • C21H34ClNO4 [ No CAS ]
 

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