diethyl 9,10-[1,4]benzenoanthracene-9,10-dicarboxylate

r-1-Acetamido-c-4-acetoxy-2-cyclohexen-t-5,t-6-dicarbonsaeure-dimethylester

r-1-Acetamido-c-4-acetoxy-2-cyclohexen-t-5,t-6-dicarbonsaeure-diethylester

r-1-Acetamido-c-2,c-4-diacetoxy-t-3-bromcyclohexan-t-5,t-6-dicarbonsaeure-dimethylester

r-1-Acetamido-t-2,t-3,c-4-triacetoxycyclohexan-t-5,t-6-dicarbonsaeure-diethylester