反应详情

BOP coupling of 3-Cycloheptyl-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionic acid (prepared in Step E; 177 mg; 0.59 mmol) and 2-amino-5-chlorothiazole hydrochloride (168 mg; 0.95 mmol) in a manner similar to that used for the preparation of (S)-3-cyclohexyl-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-N-thiazol-2-yl-propionamide as outlined in Example 1, Step B) provided after flash chromatography (Biotage 40M, eluent: 20% ethyl acetate/hexanes) 99 mg (40%) of N-(5-Chloro-thiazol-2-yl)-3-cycloheptyl-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionamide as an off white foam EI-HRMS m/e calcd for C21H24ClN3O2S (M+) 417.1278, found 417.1289.