2-Aminothiazole → HCID 10200227, compound

Participants

Reaction Steps

BOP coupling of (S)-3-cyclohexyl-2-(4-fluoro-1-oxo-1,3-dihydro-isoindol-2-yl)-propionic and (S)-3-cyclohexyl-2-(7-fluoro-1-oxo-1,3-dihydro-isoindol-2-yl)-propionic acid (499 mg; 1.63 mmol, as a 1:1 mixture of regioisomers) and 2-aminothiazole (376 mg; 3.64 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 (outlined in Example 9, Step B) provided after flash chromatography (Biotage 40M; eluent: 30% ethyl acetate/hexanes) (S)-3-Cyclohexyl-2-(4-fluoro-1-oxo-1,3-dihydro-isoindol-2-yl)-N-thiazol-2-yl-propionamide (221 mg): EI-HRMS calcd for C20H22FN3O2S (M+) 387.1417, found 387.1422; and impure (S)-3-Cyclohexyl-2-(7-fluoro-1-oxo-1,3dihydro-isoindol-2-yl)-N-thiazol-2-yl-propionamide which was further purified by radial chromatography (eluent:35% ethyl acetate/hexanes) providing 48 mg of pure (S)-3-Cyclohexyl-2-(7-fluoro-1-oxo-1,3dihydro-isoindol-2-yl)-N-thiazol-2-yl-propionamideas a white foam: EI-HRMS m/e calcd for C20H22FN3O2S (M+) 387.1417, found 387.1415.

Provenance & Evidence