5-(1-cyclopropylethylidene)cyclopenta-1,3-diene

2-prop-2-enylcyclopent-3-en-1-one

5-hexan-2-ylidenecyclopenta-1,3-diene

1-cyclopenta-2,4-dien-1-ylidene-2-methylcyclohexane

N-(5-chloro-2-methoxyphenyl)pyridine-4-carboxamide