N-[2-(tert-butylamino)-1-[1-(2-nitrophenyl)sulfonylindol-3-yl]-2-oxoethyl]-1-(2-diazo-3-oxobutanoyl)-3-methyl-N-[[1-(2-nitrophenyl)sulfonylindol-3-yl]methyl]-2-oxopiperidine-3-carboxamide 在
dirhodium tetraacetate 作用下,
以
苯 为溶剂,
以77%的产率得到2-[(1S,2S,10S,14S,19R)-1-acetyl-14-methyl-3-(2-nitrophenyl)sulfonyl-13,21-dioxo-20-oxa-3,12,18-triazahexacyclo[16.2.1.02,10.04,9.010,19.014,19]henicosa-4,6,8-trien-12-yl]-N-tert-butyl-2-[1-(2-nitrophenyl)sulfonylindol-3-yl]acetamide