: (1S,2R)-1-Methyl cis-4-cyclohexene-1,2-dicarboxylate, (1S,2R)-1,2,3,6-Tetrahydrophthalic acid 2-hydrogen 1-methyl ester, (1S,2R)-1-Methyl cis-1,2,3,6-tetrahydrophthalate, 2-Hydrogen 1-Methyl (1S,2R)-1,2,3,6-tetrahydrophthalate, (1R,6S)-cis-6-(Methoxycarbonyl)cyclohex-3-ene-1-carboxylic acid, (1R,6S)-6-(Methoxycarbonyl)cyclohex-3-enecarboxylic acid