4-methyl-N-(2-pyridin-2-ylethyldiazenyl)aniline 、
Azirino[2',3'_3,4]pyrrolo[1,2-.α.]indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-6-hydroxy-8-(hydroxymethyl)-8a-methoxy-5-methyl-, 8-carbamate 以
甲醇 、
二氯甲烷 为溶剂,
以31%的产率得到7-<(2-(2-pyridyl)ethyl)oxy>-9a-methoxymitosane