(S)-3-{3-[1-(Isopropyl-phenyl-carbamoylmethyl)-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl]-ureido}-benzoic acid tert butyl ester 、
(S)-3-{3-[1-(Isopropyl-phenyl-carbamoylmethyl)-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl]-ureido)-benzoic acid tert-butyl ester 生成 (S)-3-{3-[1-(Isopropyl-phenyl-carbamoylmethyl)-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl]-ureido}-benzoic acid