(E)-(3S,6R,8S,11S,13S)-3-Benzyl-13-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-4,6,8,11-tetramethyl-1-oxa-4-aza-cyclotridec-9-ene-2,5-dione 在
氧气 、
臭氧 、 sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 2.17h,
生成
(S)-2-[((2R,4S)-5-Hydroxy-2,4-dimethyl-pentanoyl)-methyl-amino]-3-phenyl-propionic acid (1S,3S)-1-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-4-hydroxy-3-methyl-butyl ester