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CAS No. : | 59019-85-1 | MDL No. : | MFCD01630757 |
Formula : | C4H6N2OS | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | OZNOHWKQLWLLAG-UHFFFAOYSA-N |
M.W : | 130.17 | Pubchem ID : | 20316283 |
Synonyms : |
|
Num. heavy atoms : | 8 |
Num. arom. heavy atoms : | 5 |
Fraction Csp3 : | 0.25 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 2.0 |
Num. H-bond donors : | 1.0 |
Molar Refractivity : | 33.01 |
TPSA : | 76.38 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.45 cm/s |
Log Po/w (iLOGP) : | 1.39 |
Log Po/w (XLOGP3) : | 0.91 |
Log Po/w (WLOGP) : | 0.74 |
Log Po/w (MLOGP) : | -0.81 |
Log Po/w (SILICOS-IT) : | 1.44 |
Consensus Log Po/w : | 0.73 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 2.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -1.62 |
Solubility : | 3.15 mg/ml ; 0.0242 mol/l |
Class : | Very soluble |
Log S (Ali) : | -2.1 |
Solubility : | 1.04 mg/ml ; 0.00795 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -1.03 |
Solubility : | 12.3 mg/ml ; 0.0942 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.77 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P301+P312+P330 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
GHS Pictogram: |
* 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 |
---|---|---|
In methanol; at 17 - 25℃; for 12h; | The 2-amino-5-methoxythiazole used as a starting material was prepared as follows :- Sodium methoxide (0.724 g) was added to a solution of 2-amino-5-bromothiazole(0.6 g) in methanol (6 ml) and the resultant mixture was stirred at ambient temperature for 12 hours. The mixture was evaporated and the residue was purified by column chromatography on silica using increasingly polar mixtures of methylene chloride and ethyl acetate as eluent. There was thus obtained the required starting material (0.132 g); 1HNMR: (CDCl3) 3.82 (s, 3H), 4.53 (br s, 2H), 6.41 (s, IH). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
at 17 - 25℃; for 12h; | The 2-amino-5-methoxythiazole used as a starting material was prepared as follows :- Sodium methoxide (0.724 g) was added to a solution of 2-amino-5-bromothiazole (0.6 g) in methanol (6 ml) and the resultant mixture was stirred at ambient temperature for12 hours. The mixture was evaporated and the residue was purified by column chromatography on silica using increasingly polar mixtures of methylene chloride and ethyl acetate as eluent. There was thus obtained the required starting material (0.132 g); 1H NMR:(CDCl3) 3.82 (s, 3H), 4.53 (br s, 2H), 6.41 (s, IH). | |
at 50℃; for 14h; | The commeiciaily available HBr salt of 5-bromothiazol-2~arnine (Aldrich, 5 0 g, 19 mmol) was converted to its free base To a solution of 5-bromothiazol-2-amine, in methanol (100 mL) was added sodium methoxide (0 5M in methanol, 36 mL, 18 mmol) The reaction mixture was stirred at 50 0C for 14 hours, cooled and concentrated The residue was purified by column chromatography using an Analogix.(R). Intelliflash280 .(TM). (SiO2, 0-100 percent ethyl acetate in hexanes) to afford the title compound MS (ESf) m/z 131 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Example 97 5-(2-Methoxyethyl)-N-[(5-methoxy-1,3-thiazol-2-yl)carbamoyl]-4-methylthiophene-2-sulfonamide The title compound was prepared in analogy to the procedure described in Example 54 starting from 5-(2-methoxy-ethyl)-4-methyl-thiophene-2-sulfonic acid amide and <strong>[59019-85-1]2-amino-5-methoxythiazole</strong> to obtain the desired compound as a white solid. MS (ISN): m/e 390.0 (M-H)- |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; In N,N-dimethyl-formamide; at 20℃; | To a mixture of 2-(4-cyclopropanesulfonylphenyl)-2-(2,4-difluorophenoxy)acetic acid (0.1 g, 0.27 mmol), <strong>[59019-85-1]5-methoxy-thiazol-2-ylamine</strong> (0.042 g, 0.33 mmol), HOBt (0.044 g, 0.33 mmol), and EDCI (0.062 g, 0.33 mmol), in DMF (10 mL), was added N-methyl morpholine (0.034 g, 0.33 mmom). The resulting mixture was stirred at room temperature overnight followed by dilution with DCM. The reaction mixture was poured into water; organic layer was washed with water, brine, dried over sodium sulfate, and the organic solvent evaporated to get a residue which was purified by column chromatoghaphy using 40-50% ethylacetate in hexane as eluent to provide the title compound (0.045 g). 1H NMR (DMSO-d6, 400 MHz): delta 1.02-1.08 (m, 2H), 1.09-1.15 (m, 2H), 2.82-2.92 (m, 1H), 3.82 (s, 3H), 6.15 (s, 1H), 6.89 (s, 1H), 7.04-7.12 (m, 2H), 7.36-7.40 (m, 1H), 7.87 (d, J=8.4 Hz, 2H), 7.99 (d, J=8.4 Hz, 2H). MS (EI) m/z: 480.9 (M+1). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
8% | b) 2-[1-(4-Fluorophenyl)-3-[2-(4-methoxyphenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4-yl]-N-(5-methoxy-1,3-thiazol-2-yl)acetamide (example 88). [0274] Oxalyl chloride (66 muL; 0.75 mmol; 2.5 eq), followed by dimethylformamide (catalytic amount) was added to a solution of 2-[1-(4-fluorophenyl)-3-[2-(4-methoxyphenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4-yl]acetic acid (1-10) (120 mg; 0.30 mmol; 1 eq) in dichloromethane (6 mL). The reaction mixture was stirred at room temperature for 1 hour and 30 minutes. Pyridine (75 muL; 1.2 mmol; 4 eq) and <strong>[59019-85-1]5-methoxy-1,3-thiazol-2-amine</strong> (1-48) (58.2 mg; 0.44 mmol; 1.5 eq) were added. The reaction mixture was stirred at room temperature for 2 days. Ammonium chloride and ethyl acetate (20 mL) were added and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with saturated sodium chloride (3 x 15 mL), dried over sodium sulfate, filtered and concentrated to dryness. The crude was purified by preparative HPLC and the title compound 2-[1-(4-fluorophenyl)-3-[2-(4-methoxyphenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4-yl]-N-(5-methoxy-1,3-thiazol-2-yl)acetamide was obtained in 8% yield (12 mg) as a white powder. 1H-NMR (DMSO-d6): delta (ppm) 2.78 (m, 1H), 2.85 (m, 1H), 3.16 (d, 1H), 3.33 (m, 1H), 3.63 (m, 1H), 3.72 (s, 3H), 3.85 (s, 3H), 4.10 (m, 1H), 4.81 (m, 1H), 6.83 (m, 3H), 7.15 (d, 2H), 7.39 (m, 4H), 12.14 (s, 1H); MS (ESI+): m/z = 514.8 [M+H]+. | |
8% | b) 2-ri-(4-Fluorophenyl)-3-r2-(4-methoxyphenyl)ethyll-5-oxo-2- sulfanylideneimidazolidin-4-yll-N-(5-methoxy-l,3-thiazol-2-yl)acetamide (example 88). Oxalyl chloride (66 mu; 0.75 mmol; 2.5 eq), followed by dimethylformamide (catalytic amount) was added to a solution of 2-[l-(4-fluorophenyl)-3-[2-(4- methoxyphenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4-yl]acetic acid (I- 10) (120 mg; 0.30 mmol; 1 eq) in dichloromethane (6 mL). The reaction mixture was stirred at room temperature for 1 hour and 30 minutes. Pyridine (75 mu; 1.2 mmol; 4 eq) and 5-methoxy-l,3-thiazol-2-amine (1-48) (58.2 mg; 0.44 mmol; 1.5 eq) were added. The reaction mixture was stirred at room temperature for 2 days. Ammonium chloride and ethyl acetate (20 mL) were added and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with saturated sodium chloride (3 x 15 mL), dried over sodium sulfate, filtered and concentrated to dryness. The crude was purified by preparative HPLC and the title compound 2-[l-(4- fluorophenyl)-3-[2-(4-methoxyphenyl)ethyl]-5-oxo-2-sulfanylideneimidazolidin-4- yl]-N-(5-methoxy-l,3-thiazol-2-yl)acetamide was obtained in 8% yield (12 mg) as a white powder. 1H-NMR (DMSO-d6): delta (ppm) 2.78 (m, 1H), 2.85 (m, 1H), 3.16 (d, 1H), 3.33 (m, 1H), 3.63 (m, 1H), 3.72 (s, 3H), 3.85 (s, 3H), 4.10 (m, 1H), 4.81 (m, 1H), 6.83 (m, 3H), 7.15 (d, 2H), 7.39 (m, 4H), 12.14 (s, 1H); MS (ESI+): m/z = 514.8 [M+H]+ . |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
38% | With methanol; potassium carbonate; at 20℃; | a) 5-Methoxy-1,3-thiazol-2-amine (I-45). [0272] Potassium carbonate (4.7 g; 34.4 mmol; 3 eq) and sodium methanoate (1.8 g; 34.4 mmol; 3 eq) were added to a solution of <strong>[61296-22-8]5-bromo-1,3-thiazol-2-amine hydrobromide</strong> (2.9 g; 11.5 mmol; 1 eq) in methanol (37 mL). The reaction mixture was stirred at room temperature overnight. The mixture was concentrated to dryness. The crude was purified on silica gel using ethyl acetate/ dichloromethane (80/20 to 100/0) as an eluent. The title compound 5-methoxy-1,3-thiazol-2-amine was obtained in 38% yield (564 mg) as a purple solid. 1H-NMR (CDCl3): delta (ppm) 3.82 (s, 3H), 4.48 (m, 2H), 6.41 (s, 1H). |
38% | With methanol; potassium carbonate; at 20℃; | a) 5-Methoxy- 1 ,3-thiazol-2-amine (1-45) . K2C03, RT, overnight Potassium carbonate (4.7 g; 34.4 mmol; 3 eq) and sodium methanoate (1.8 g; 34.4 mmol; 3 eq) were added to a solution of 5-bromo-l,3-thiazol-2-amine hydrobromide (2.9 g; 11.5 mmol; 1 eq) in methanol (37 mL). The reaction mixture was stirred at room temperature overnight. The mixture was concentrated to dryness. The crude was purified on silica gel using ethyl acetate/dichloromethane (80/20 to 100/0) as an eluent. The title compound 5-methoxy-l,3-thiazol-2-amine was obtained in 38% yield (564 mg) as a purple solid. 1H-NMR (CDC13): delta (ppm) 3.82 (s, 3H), 4.48 (m, 2H), 6.41 (s, 1H). |
In methanol; at 0 - 20℃; for 1h; | To a solution of 5-bromo-l,3-tniazol-2-amine hydrobromide (26 g, 100 mmol) in methanol (100 mL) was added dropwise sodium methoxide (12 g, 222 mmol) in 40 mL methanol at 0 C. The resulting solution was stirred for 1 h at room temperature and the reaction was diluted with ethyl acetate. The solids were filtered out and the filtrate was concentrated in vacuo to afford 5-methoxy-l,3-thiazol-2- amine (6.5 g, crude) as a tan solid. LCMS (ESI): M+H+ = 131.0. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
5 g | In acetonitrile; at 50℃; | To a solution of 5-methoxy-l,3-thiazol-2-amine (6.50 g, crude) in acetonitrile (100 mL) was added ethyl l,3-dioxo-2,3-dihydro-lH-isoindole-2-carboxylate (10.9 g, 49.9 mmol). The resulting solution was stirred overnight at 50 C and then concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with dichloromethane/petroleum ether (3/1) to afford 2-(5-methoxy- 1, 3-thiazol-2-yl)-2,3-dihydro-lH-isoindole-l,3-dione (5 g, 38%) as a light brown solid. LCMS (ESI): M+H+ = 261.0. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
60% | In tetrahydrofuran; at 60℃; for 18h;Inert atmosphere; | ompound 37b (1.8 g, 4.5 mmol) was dissolved in 25 mL of tetrahydrofuran under argon, and compound 2a (880 mg, 6.8 mmol) was added.The reaction was heated to 60 C for 18 hours. After the reaction has cooled to room temperature,The reaction solution was concentrated under reduced pressure.The obtained residue was purified by silica gel column chromatography using eluent system C.The title compound 37c (1.2 g, yield: 60%) was obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
31% | In isopropyl alcohol; at 80℃; for 24h; | Compound 39 (30 mg, 0 · 06 mmol) was dissolved in 5 mL of isopropanol.Compound 2a (13 mg, 0.1 mmol) was added.The reaction was heated to 80 C for 24 hours.After the reaction was cooled to room temperature, the reaction solution was concentrated under reduced pressure.The resulting residue was purified by silica gel column chromatography using eluent system A.The title compound 39 was obtained (13 mg, yield: 31%) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
17% | In isopropyl alcohol; at 160℃; for 16h; | Compound 45d (60 mg, 0.1 mmol) was dissolved in 5 mL of isopropanol.Compound 2a (30 mg, 0.2 mmol) was added.The reaction was heated to 160 C for 16 hours.After the reaction was cooled to room temperature, the reaction solution was concentrated under reduced pressure.The obtained residue was purified by silica gel column chromatography using eluent system C.The title compound 45 (1 lmg, yield: 17%) was obtained. |