Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Benzo(d)thiazol-2-amine | HCID 8706 | — |
| Reactant | Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate | HCID 151348 | — |
| Reactant | 3-Cyclopentyl-2-(4-methanesulfonyl-phenyl)propionic acid | HCID 12069489 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 10113418 | HCID 10113418 | 66% |
Reaction Steps
A solution of 3-cyclopentyl-2-(4-methanesulfonyl-phenyl)-propionic acid (50 mg, 0.17 mmol), benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate (119 mg, 0.27 mmol), triethylamine (70 AL, 0.51 mmol), and 2-aminobenzthiazole (41 mg, 0.27 mmol) in methylene chloride (5 mL) was stirred at 25° C. under nitrogen for 2.33 h. The reaction mixture was partitioned between water and methylene chloride. The organic layer was sequentially washed with a 1N aqueous hydrochloric acid solution (1×10 mL), water (1×10 mL), and a saturated aqueous sodium chloride solution (1×10 mL). The organic layer was dried over magnesium sulfate, filtered, and concentrated in vacuo. Biotage chromatography (FLASH 40S, Silica, 1/1 hexanes/ethyl acetate) afforded N-benzothiazol-2-yl-3-cyclopentyl-2-(4-methanesulfonyl-phenyl)-propionamide (48 mg, 66%) as a white solid: mp 206-209° C.; EI-HRMS m/e calcd for C22H24N2O3S2(M+) 428.1228, found 428.1233.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06545155B2 |
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| Source dataset | uspto-grants-2003_04 |
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| ORD ID | ord-3b3f48ab6f6a44928ce7afe8914f6b8a |
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| Source note | uspto-grants-2003_04 |
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