N-(2-methoxyethyldiazenyl)-4-methylaniline 、
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41%的产率得到7-<(2-methoxyethyl)oxy>-9a-methoxymitosane