2-(9-hydroxy-9-fluorenyl)cyclohexanol

2-(9-hydroxy-9-fluorenyl)-2-octanol

9H-fluoren-9-yl 4-chlorobutanoate

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

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