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CAS No. : | 13515-95-2 | MDL No. : | MFCD03658918 |
Formula : | C7H17ClN2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 196.68 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Class: | ||
Precautionary Statements: | UN#: | ||
Hazard Statements: | Packing Group: |
* 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.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | Stage #1: With sodium methylate In methanol at 20℃; for 4 h; Inert atmosphere; Reflux Stage #2: With hydrogenchloride In ethanol |
L-Lysine hydrochloride (100.0 g, 547 mmol) dissolved inMeOH (1200 mL) was stirred for 30 min at 0 C under Ar. Thionyl chloride (80 mL, 1.10 mol) was addeddropwise over 20 min at 0 C. The solution was stirred for 1 h at room temperature, and refluxed forovernight. After removal of the solvent in vacuo, the crude product was recrystallized from MeOH to givemethyl L-lysinate dihydrochloride (124.1 g, yield 97percent). Methyl L-lysinate dihydrochloride (60.0 g, 257mmol) dissolved in MeOH (1200 mL) was stirred at room temperature under Ar. NaOMe (48.0 g, 889mmol) was added, and the solution was refluxed for 4 h. The mixture was hydrolyzed by addingammonium chloride (20.0 g), and the solution was filtered, and then the solvent was removed in vacuo.The residue was dissolved in dimethoxyethane (80 mL), and the solution was filtered, and then thesolvent was removed in vacuo. The residue was dissolved in EtOH (100 mL), and EtOH saturated withHCl (20 mL) was added to give the crude product. The crude product was recrystallized from MeOH togive (S)-3-aminozepan-2-one hydrochloride (5: 27.8 g, yield 66percent) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | Methanol (50 mL) was cooled down to 0 °C and thionyl chloride (100 mmol, 7.25 mL) was added dropwise. After stirring for ten minutes (S)-lysine (50.9 mmol, 7.31 g) was added portionwise and the reaction mixture was stirred for further ten minutes at 0 °C. Afterwards the mixture was heated to reflux for three hours. The reaction mixture was cooled down to room temperature and the solvent was removed under reduced pressure. After drying under vacuum (S)-lysine methyl ester dihydrochloride (50.9 mmol, 11.9 g, quant.) was obtained as white solid.1H-NMR (600 MHz, D2O): delta (ppm) = 1.27-1.41 (m, 2 H), 1.60 (td, J = 7.2 Hz,J = 15.5 Hz, 2 H), 1.75-1.81 (m, 1 H), 1.84-1.90 (m, 1 H), 2.84 (t, J = 7.7 Hz,2 H), 3.68 (s, 3 H), 4.00 (t, J = 6.5 Hz, 1 H).13C-NMR (91 MHz, D2O): delta (ppm) = 22.1 (CH2), 26.9 (CH2), 29.9 (CH2), 39.7 (CH2),53.3 (CH3), 54.2 (CH), 171.2 (Cq). | |
87% | With hydrogenchloride; | L-lysine (a) (14.60 g, 100 mmol) was dissolved in 150 mL of MeOH, anhydrous HCl gas was added until the solution changed from clarification to turbidity. Then, the solvent was evaporated with the desired compound b (17.10 g, 87 percent yield) being recrystallized as white solid by ester. Mp: 200-203 °C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
31.8% | With triethylamine; In ethyl acetate; at 20℃; for 2h; | Example-2 2,6-Bis-(2-benzyloxy-acetylamino)-hexanoic acid methyl ester To a mixture of L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (50 grams, 214.4 mmol), triethylamine (131 grams, 1.294 moles) in ethyl acetate (750 mL) at room temperature was added benzyloxy acetyl chloride (120 grams, 650.4 mmol) drop wise. The mixture was further stirred at room temperature for 2 hours. The solids were filtered off. The organic phase was washed with 5percent sodium bicarbonate (2*100 mL), water (2*100 mL), dried over sodium sulphate and distilled. The crude 2 was purified by column chromatography on silica gel using Benzene: Ethyl acetate (9:1) to get pure 2 (30 grams, 31.8percent) as a white powder. M.p: 62-65° C. 1H NMR (CDCl3) delta 1.36 (m, 2H, CH2), 1.56 (m, 2H, CH2), 1.76 (m, 2H, CH2), 3.28 (m, 2H, CH2) 3.78 (s, 3H, Ester), 3.96 (m, 3H, CH2 and CH), 4.60 (m, 6H, CH2x3), 6.60 (bt, 1H, NH), 7.06 (bd, 1H, NH), 7.34 (m, 10H, Ar). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With triethylamine; | Further reductive amination reactions according to the invention are shown in Figure 22. Reductive amination of 40 with L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> 43 in the presence of triethylamine yields L-lysine derivative 97. This compound features two iminosugar moieties, formed by reaction of both available amino functions of 43 with two equivalents of xylo-pentodiasdose 40. In order to prove the suitability of the applied method for the "conjugation" of amino acids other than lysine, Z-L-Ser-OMe 47 is used as amino acid component. Reductive amination with 40 furnishes compound 98 in 73% yield, indicating that reductive amination of the alpha-amino function of various amino acids with dicarbonyl sugars is generally possible. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With triethylamine; | Due to the versatility with which adamantyl amide analogues can be synthesized by combining the commercially available 1-adamantylcarbonyl chloride with amino-acid methyl and ethyl esters, a series of adamantyl amnide analogues was synthesized. The resulting methyl and ethyl esters in all but one case were readily converted to the corresponding acids by saponification with lithium hydroxide as shown in (Scheme30). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | The above (2-[2-(2-azidoethoxy)ethoxy]ethoxy)acetic acid (13g, 46.9mol) was dissolved in dichloromethane (100ml). N-Hydroxysuccinimide (6.5g, 56.3mmol) and 1 -ethyl-3-(3- dimethylaminopropylcarbodiimide hydrochloride (10.8g, 56.3mmol) was added and the reaction mixture was standing for 1 hour. Diisopropylethylamine (39ml, 234mmol) and L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (6.Og, 25.8mmol) were added and the reaction mixture was standing for 16 hours. The reaction mixture was diluted with dichloromethane (300ml), extracted with water (100ml), hydrochloride (2N, 2x100ml), water (100ml), 50percent saturated sodi- umhydrogencarbonate (100ml) and water (2x100ml). The organic phase was dried with magnesium sulphate, filtered and evaporated in vacuo, giving an oil, which was used without further purification. Yield: 1 1 g (73 percent). LCMS: m/z = 591 . 13C-NMR (CDCI3): (selected) delta = 172.48; 169.87; 169.84; 71 .093-70.02; 53.51 ; 52.34; 51 .35; 50.64; 38.48; 36.48; 31 .99; 31 .40; 29.13; 22.82. | |
73% | (S)-2,6-Bis-(2-{2-[2-(2-azidoethoxy)ethoxy]ethoxy}acetylamino)hexanoic acid methyl ester EPO <DP n="86"/>The above (2-[2-(2-azidoethoxy)ethoxy]ethoxy)acetic acid (13g, 46.9mol) was dissolved in dichloromethane (100ml). N-Hydroxysuccinimide (6.5g, 56.3mmol) and 1 -ethyl-3-(3- dimethylaminopropylcarbodiimide hydrochloride (10.8g, 56.3mmol) was added and the reaction mixture was standing for 1 hour. Diisopropylethylamine (39ml, 234mmol) and L- <strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (6.Og, 25.8mmol) were added and the reaction mixture was standing for 16 hours. The reaction mixture was diluted with dichloromethane (300ml), extracted with water (100ml), hydrochloride (2N, 2x100ml), water (100ml), 50percent saturated sodiumhydrogencarbonate (100ml) and water (2x100ml). The organic phase was dried with magnesium sulphate, filtered and evaporated in vacuo, giving an oil, which was used without further purification. Yield: 1 1 g (73 percent). LCMS: m/z = 591 . 13C-NMR (CDCI3): (selected) delta = 172.48; 169.87; 169.84; 71 .093-70.02; 53.51 ; 52.34; 51 .35; 50.64; 38.48; 36.48; 31 .99; 31 .40; 29.13; 22.82. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene; In methanol; at 20℃; for 24h;Product distribution / selectivity; | To a suspension of L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (1.00 g,4.29 mmol) in 10 ml_ of methanol was added 1.22 ml_ (8.16 mmol) of 1 ,8- diazabicyclo[5.4.0]undec-7-ene. A solution of GDL (373 mg, 2.14 mmol) in2 mL of methanol was added dropwise to the resulting homogeneous solution. After the reaction had stirred at room temperature for 1 day, evaporation of solvent under vacuum and examination by 1H NMR showed the product to contain a 45:1 ratio of lysine acylated on the epsilon-amine versus the alpha-amine group. 1H NMR (500 MHz, DMSO-d6) delta 7.82 (t, J = 5.7 Hz, 1 H), 7.59 (t, J = 5.8 Hz, 1 H), 3.97 (d, J = 3.7 Hz, 1 H), 3.91 (d, J = 6.4 Hz, 1H), 3.85 (t, J = 3.4 Hz, 1 H), 3.66 (dd, J = 2.9, 6.3 Hz, 1H), 3.59 (s, 6H), 3.27 (m, 2H), 3.04 (m, 4H), 1.53-1.26 (m, 12H). 13C NMR (126 MHz, DMSO-CZ6) delta 176.27 (2C), 173.30, 172.33, 73.53, 73.19, 71.73, 70.57, 53.98 (2C), 51.56 (2C), 38.33, 38.25, 34.34 (2C), 29.05, 28.96, 22.68, 22.66. | |
To a solution of L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (0.341 g, 1.46 mmol) in 5 mL of methanol was added a solution of sodium hydroxide (0.117 g, 2.93 mmol) in methanol (5 mL). After stirring at ambient temperature for 25 minutes, the mixture was filtered to remove insolubles, and a solution of GDL (0.127 g, 7.31 mmol) in methanol (5 mL) was added. The reaction stirred several days at ambient temperature, and EPO <DP n="26"/>solvent was removed under vacuum to give 0.296 g (75 percent yield). 1H NMR showed the product to contain a 17:1 ratio of lysine acylated on the epsilon- amine versus lysine acylated on the alpha-amine group. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.4% | In methanol; | Step A. Preparation of L-lysine methyl ester dihydrochloride. MeOH (J. Org. Chem. 44, 4841 (1979)) To a stirred suspension of L-lysine monohydrochloride (190.7 g, 1.08 mol) in MeOH (3 L) was added (via a cannula) trimethylsilylchloride (350 mL). The mixture quickly became clear and homogeneous. The solution was stirred at reflux for 3 h and then at room temperature for 2 h. The reaction flask was left overnight in a refrigerator cooled to -75° C. The large crystals obtained were filtered, washed with cold MeOH (100 mL) and dried in vacuo for 24 h at room temperature. L-lysine methyl ester dihydrochloride. MeOH (275.8 g) was obtained in 99.4percent yield. 1H NMR (DMSO-d6): delta1.36 (m, 1H), 1.45 (m, 1H), 1.58 (m, 2H), 1.81 (m,2H), 2.74 (br s, 2H), 3.11 (s, 3H), 3.72 (s, 3H), 3.94 (t, J=4.0, 1H), 8.12 (br s, 3H), 8.72 (br s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With ammonium chloride; sodium methylate; In methanol; ethanol; | Step B. Preparation of L-alpha-amino-epsilon-caprolactam hydrochloride(J. Org. Chem. 44, 4841 (1979)) Sodium methylate 58.73 g (1 mole) was dissolved in cold MeOH (1 L). About one half of this solution was cannulated into a solution of L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong>. MeOH (132.5 g, 0.5 mole) in 1 L MeOH. The suspension was allowed to warm and dissolved. The remainder sodium methylate was added with concurrent apparition of NaCl. The mixture was then allowed to reflux for 4 h, after which 5 g of NH4Cl was added. The solution then sat at RT for 18 h and was filtered through celite. Evaporation of the MeOH resulted in a thick opaque syrup. The excess NaCl was removed by redissolving the mixture in boiling glyme (100 mL, 2*), filtering through celite and evaporating in vacuo. The resulting clear oil was taken up in ethanol and acidified with 12 N HCl. Cooling gave a mass of fine white needles which were filtered and dried in vacuo to yield 69.71 g, 85percent of the title compound. MP 301-306° C. [alpha]d=-24.8 (c=3.4, 1N HCl). 1H NMR (DMSO-d6): delta1.17 (q, J=12.6, 1H), 1.45 (q, J=12.6, 1H), 1.58 (q, J=12.6, 1H), 1.71 (d, J=12.6, 1H), 1.86 (d, J=12.6, 1H), 1.94 (d, J=12.6, 1H), 3.03 (m, 1H), 3.15 (m, 1H), 4.03 (d, J=12.6, 1H), 8.12 (br s, 1H),8.22 (br s, 3H). 13C NMR (DMSO-d6): delta28.2, 29.7, 29.9, 41.6, 53.4, 173.2. LC-MS: 129.1 (M+H)+, 99percent pure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Example 5 Preparation of L-Lysine methyl ester-HA (formula XXIV)-Sodium hyaluronate (100 mg, 0.25 mmol) and L-lysine methyl ester dihydrochloride (1.748 g, 7.5 mmol) was dissolved in H2O (40 ml, 2.5 mg/ml HA). The pH was adjusted to 6.5 and HOBT (169 mg, 1.25 mmol) predissolved in a 1:1 mixture of water and DMSO (1 ml) and EDC (240 mg, 1.25 mmol) was added and the reaction mixture was stirred overnight. The pH was subsequently adjusted to 7.0 with 1M NaOH and NaCl added to produce a 5percent w/v solution. HA was precipitated by addition of three volume equivalents of ethanol. The precipitate was redissolved in H2O at a concentration of approximately 5 mg/ml and the precipitation repeated twice. The purified product was freeze dried and kept at 4° C. under N2. See FIG. 3Cfor NMR data of the product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In water; | The resulting filter cake was then dried by airflow at 50° C. for 10 hours to obtain 197.0 g of L-lysine methyl ester dihydrochloride having a purity of 96.3percent and containing 1.5percent of L-lysine hydrochloride and 0.2percent of water. The yield of the product based on the additional L-lysine hydrochloride was 98.4percent. The filtrate, containing 31.0 g (as lysine) of lysine methyl ester hydrochloride and lysine hydrochloride, was used again in the esterification reaction. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With benzotriazol-1-ol; In dichloromethane; N,N-dimethyl-formamide; at 0 - 20℃; for 24.25h; | LysOMe. 2EtaC1 (1.43 g, 6 mmol) was dissolved in DMF (45 mL) with the DIEA (2.35 g, 18 mmol), and then the HOBT (2.25 g, 14 mmol) was added. After 5 minutes ZLys(Z)OPFP (12.5 g, 21 mmol) in DCM (30 mL) was added at 0 0C for 10 minutes. The mixture was stirred for 24 h at RT under N2. After concentration under vacuum the mixture was dissolved in DCM (50 mL) washed with NaHCO3 (2x150 mL), water (2x150 mL) and then dried over NaSO4. The solvent was removed, and the mixture was precipitated in ether EPO <DP n="258"/>to lead a pure white compound 5.72 g (98percent).1H NMR (CDCl3): delta 1.35-1.79 (m, 18, CH2- CH2); 2.87 (m, 1, CH2-NH); 3.13 (m, 4, CH2-NH); 3.40 (m, 1, CH2-NH); 3.63 (s, 3, CH3); 4.16 (m, 1, CH-NEta); 4.34 (m, 1, CH-NEta); 4.38 (m, 1, CH-NEta); 4.88-5.02 (4 x s, 8, CH2- O); 5.13 (m, 1, CH2-NH); 5.28 (m, 1, CH2-NH); 5.94 (d, I5 CEta-NH); 6.25 (d, 1, CEta-NH); 6.88 (m, 1, CEta2-NH);7.19-7.27 (m, 20, arom CH). 7.43 (d, 1, CEta-NH). FAB MS: 953.4 m/z (MH+) (theory. 952.4 m/z (M+)). Elemental analysis: (theory: C, 64.27; H, 6.77; Nu, 8.82; O, 20.14) found C, 63.98; H, 6.79; Nu, 8.81; O, 20.39. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
11 g (73%) | With N-ethyl-N,N-diisopropylamine; In dichloromethane; | Example 14 (S)-2,6-Bis-(2-{2-[2-(2-azidoethoxy)ethoxy]ethoxy}acetylamino)hexanoic acid methyl ester The above (2-[2-(2-azidoethoxy)ethoxy]ethoxy)acetic acid (13 g, 46.9 mol) was dissolved in dichloromethane (100 ml). N-Hydroxysuccinimide (6.5 g, 56.3 mmol) and 1-ethyl-3-(3-dimethylaminopropylcarbodiimide hydrochloride (10.8 g, 56.3 mmol) was added and the reaction mixture was standing for 1 hour. Diisopropylethylamine (39 ml, 234 mmol) and L-<strong>[13515-95-2]lysine methyl ester dihydrochloride</strong> (6.0 g, 25.8 mmol) were added and the reaction mixture was standing for 16 hours. The reaction mixture was diluted with dichloromethane (300 ml), extracted with water (100 ml), hydrochloride (2N, 2*100 ml), water (100 ml), 50percent saturated sodiumhydrogencarbonate (100 ml) and water (2*100 ml). The organic phase was dried with magnesium sulphate, filtered and evaporated in vacuo, giving an oil, which was used without further purification. Yield: 11 g (73percent). LCMS: m/z=591. 13C-NMR (CDCl3): (selected) delta=172.48; 169.87; 169.84; 71.093-70.02; 53.51; 52.34; 51.35; 50.64; 38.48; 36.48; 31.99; 31.40; 29.13; 22.82. |
Tags: 13515-95-2 synthesis path| 13515-95-2 SDS| 13515-95-2 COA| 13515-95-2 purity| 13515-95-2 application| 13515-95-2 NMR| 13515-95-2 COA| 13515-95-2 structure
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H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
Sorry,this product has been discontinued.
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