Cycloheptatrien-dicarbonsaeure-(1.6)-monomethylester

6-Chloro-cyclohepta-1,3,5-trienecarboxylic acid methyl ester

6-Bromo-cyclohepta-1,3,5-trienecarboxylic acid methyl ester

(6'-Hydroxymethyl-bicycloheptyl-3,5,7,1',3',5'-hexaen-3-yl)-methanol

6,6'-Bis-bromomethyl-bicycloheptyl-1,3,5,1',3',5'-hexaene