N-(2-aminoethyl)-3β-hydroxy-11-oxo-olean-12-en-30-amide 在
copper(II) sulfate
1H-咪唑-1-磺酰叠氮盐酸盐 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
以73%的产率得到(2S,4aS,6aS,6bR,10S,12aS)-N-(2-azidoethyl)-10-hydroxy-2,4a,6a,6b,9,9,12a-heptamethyl-13-oxo-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-2-carboxamide