(S)-3-(5-{[2-(2-trifluoromethoxy-phenyl)-5-trifluoromethyl-oxazole-4-carbonyl]-amino}-pyridin-2-ylamino)-pyrrolidine-1-carboxylic acid ethyl ester 、 4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenylamino-pyrrolidine-1-carboxylic acid ethyl ester 、 (S)-3-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenylamino}-pyrrolidine-1-carboxylic acid tert-butyl ester 、
氯甲酸乙酯 生成 (S)-3-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenylamino}-pyrrolidine-1-carboxylic acid ethyl ester