{(S)-1-[(2R,7S,10S)-15-Benzyloxy-2-(2-benzyloxy-phenyl)-4-cyano-2-hydroxymethyl-7-isopropyl-9-oxo-17-oxa-5,8-diaza-tricyclo[10.3.1.13,6]heptadeca-1(16),3,5,12,14-pentaen-10-ylcarbamoyl]-2-methyl-propyl}-carbamic acid benzyl ester 在
(+)-10-camphorsulfonic acid 作用下,
以
苯 为溶剂,
反应 24.0h,
以57%的产率得到benzyl N-[(2S)-1-[[(2R,10S,13S)-5,12-dioxo-18-phenylmethoxy-2-(2-phenylmethoxyphenyl)-10-propan-2-yl-4,8-dioxa-11,20-diazatetracyclo[13.3.1.16,9.02,7]icosa-1(18),6,9(20),15(19),16-pentaen-13-yl]amino]-3-methyl-1-oxobutan-2-yl]carbamate