9H-fluoren-9-yl 4-chlorobutanoate

9-(cyclopropylcarbonyl)-9-[(cyclopropylcarbonyl)oxy]fluorene

[9-(cyclopropanecarbonyl)fluoren-9-yl] 4-chlorobutanoate

N-phenylcyclopropylcarboxamide

9-(cyanoethyl)-9-anilinofluorene