tert-butyl (3S)-3-aminopyrrolidine-1-carboxylate → (3S)-tert-butyl 3-(3-(5-(3,4-dimethoxyphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-2-yl)benzamido)pyrrolidine-1-carboxylate

Participants

Reaction Steps

Example ER-895811 was prepared in two steps from 3-(5-(3,4-dimethoxyphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-2-yl)benzoic acid (24 mg, 0.054 mmol) and commercially available (S)-tert-butyl 3-aminopyrrolidine-1-carboxylate (40 mg, 0.215 mmol) in a manner similar to that of example D-6 to afford intermediate (3S)-tert-butyl 3-(3-(5-(3,4-dimethoxyphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-2-yl)benzamido)pyrrolidine-1-carboxylate (7 mg, 0.011 mmol, 21% yield). Then, this intermediate (6 mg, 0.0097 mmol) was treated with HCl in a manner similar to that of example ER-897560 to afford the desired product ER-895811 (4.4 mg, 82% yield).

Provenance & Evidence