| alpha-(1-butynyl)-cyclopentaneglycolic aci 1-methyl-4-piperidyl ester |
| 1-methyl-4-piperidyl cyclopentyl(1-butynyl)glycolate |
| alpha-(1-butynyl)cyclopentaneglycolic acid 1-methyl-4-piperidyl ester |
| alpha-(1-butynyl)-cyclopentaneglycolic aci1-methyl-4-piperidyl ester |
