| alpha-isopropenyl-2-thiopheneglycolic aci 1-methyl-4-piperidyl ester |
| 1-methyl-4-piperidyl-2-thienyl(isopropenyl)glycolate |
| 2-hydroxy-3-methyl-2-(2-thienyl)-3-butenoic aci 1-methyl-4-piperidyl este |
| alpha-isopropenyl-2-thiopheneglycolic acid 1-methyl-4-piperidyl ester |
| alpha-isopropenyl-2-thiopheneglycolic aci1-methyl-4-piperidyl ester |
