1-benzoyl-5-hydroxy-4-[methyl-(2-methyl-[1,3]dioxolan-2-ylmethyl)-amino]-1,2,2a,3,4,5-hexahydro-benz[cd]indole-5-carboxylic acid amide 在
lead(II,IV) oxide 、
溶剂黄146 作用下,
生成 4-benzoyl-7,9-dimethyl-4,5,5a,6,6a,7,8,9-octahydro-9,11a-epoxido-[1,4]oxazepino[6',5':4,5]benz[1,2,3-
cd]indol-11-one