(1R,2R,3r,5S,6S,7s)-7-phenyltetracyclo[4.1.0.02,4.03,5]heptane

(6R)-3-methyl-8-oxo-7c-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzyl ester

(6R)-3t-bromo-3c-methyl-8-oxo-7c-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]octane-2c-carboxylic acid benzyl ester

1-(1,4-dimethoxy-3-naphthylmethyl)-2-benzyloxycarbonyl-4-(1-hydroxyethyl)-4-hydroxy-cyclohexane

4'-Nitro-2,6-dibenzyloxy-diphenylaether-4-carbonsaeuremethylester