、
1,4-二叠氮基丁烷 在
copper(II) sulfate 、
sodium ascorbate 、
三[(1-苄基-1H-1,2,3-三唑-4-基)甲基]胺 作用下,
以81%的产率得到[(1R,2R,4S)-4-[(2R)-2-[(1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,26E,28E,30S,32S,35R)-1,18-dihydroxy-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-2,3,10,14,20-pentaoxo-11,36-dioxa-4-azatricyclo[30.3.1.04,9]hexatriaconta-16,24,26,28-tetraen-12-yl]propyl]-2-methoxycyclohexyl] 1-[4-[[1-[4-[4-[[4-[1-[(1R,2R,4S)-4-[(2R)-2-[(1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,26E,28E,30S,32S,35R)-1,18-dihydroxy-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-2,3,10,14,20-pentaoxo-11,36-dioxa-4-azatricyclo[30.3.1.04,9]hexatriaconta-16,24,26,28-tetraen-12-yl]propyl]-2-methoxycyclohexyl]oxycarbonyloxyethyl]-2-methoxy-5-nitrophenoxy]methyl]triazol-1-yl]butyl]triazol-4-yl]methoxy]-5-methoxy-2-nitrophenyl]ethyl carbonate