91189-24-1
2-甲基-2,7-二氮杂螺[4.4]壬烷-1,3,8-三酮
→
~50%
135380-53-9
2-甲基-2,7-二氮杂螺[4.4]壬烷
91189-23-0
3-Pyrrolidineacetic acid, 3-(ethoxycarbonyl)-5-oxo-, ethyl ester
91189-26-3
2-Benzyl-7-methyl-2,7-diazaspiro[4.4]nonane dihydrochloride