10199-17-4
5'-oxo-4',4'-diphenyl-spiro[fluorene-9,3'-pyrazolidine]-1',2'-dicarboxylic acid diethyl ester
4709-68-6
二苯亚甲基芴

参考文献

Fahr,E. et al. Justus Liebigs Annalen der Chemie, 1966 , vol. 696, p. 136 - 144

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