甲醇 、
3-acetoxy-7-methoxy-1,2,3,4-tetrahydrocyclopent[b]indol-5,8-dione 在
palladium on activated charcoal
氢气 作用下,
生成 5'-hydroxy-7,3',7'-trimethoxy-1,2,3,4,2',3',4',5'-octahydro-1'H-[3,5']bi[cyclopent[b] indolyl]-5,8,8'-trione 、 3'-acetoxy-5'-hydroxy-7,7'-dimethoxy-1,2,3,4,2',3',4',5'-octahydro-1'H-[3,5']bi[cyclopent[b] indolyl]-5,8,8'-trione