3-(but-2-enyl)-2-methyl-4-oxocyclopent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1S)-3-(2Z)-2-butenyl-2-methyl-4-oxo-2-cyclopenten-1-yl ester, (1R,3R)- cinerin I 3-(but-2-enyl)-2-methyl-4-oxocyclopent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate (1R)-2,2-Dimethyl-3α-(2-methyl-1-propenyl)cyclopropane-1β-carboxylic acid (S)-3-[(Z)-2-butenyl]-2-methyl-4-oxo-2-cyclopenten-1-yl ester (1R)-2,2-Dimethyl-3α-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (S)-3-[(Z)-2-butenyl]-2-methyl-4-oxo-2-cyclopenten-1-yl ester (1R)-2,2-Dimethyl-3α-(2-methyl-1-propenyl)cyclopropanecarboxylic acid [(S)-3-[(Z)-2-butenyl]-2-methyl-4-oxo-2-cyclopenten-1-yl] ester Cinerin Ⅰ (1R,3R)-2,2-DiMethyl-3-(2-Methyl-1-propenyl)cyclopropanecarboxylic Acid (1S)-3-(2Z)-2-Butenyl-2-Methyl-4-oxo-2-cyclopenten-1-yl Ester