1,2,4,5,5,6,6,7,7-nonafluorocyclohepta-1,3-diene

2,4,5,7-tetrafluoro-3,6-dimethoxycyclohepta-2,4,6-trien-1-one

1-cyclohepta-2,4,6-trien-1-ylpyrrolidine-2,5-dione

5-methylcyclohepta-1,3-diene

methyl cyclohepta-1,6-diene-1-carboxylate