7-(trichloromethylcarbonylamino)-6,7-dihydro-2-(p-toluenesulfonyl)-5H-cyclopenta[b]pyridine

7-(trichloromethylcarbonylamino)-5, 6-dihydrocyclopenta[c]pyridazine

2-(6-Bromo-3-vinyl-hept-6-enyl)-malonic acid dimethyl ester

2-Hepten-6-ynoic acid, (E)-

ethyl (2R,3S)-2,3-dihydroxyhept-6-enoate