| alpha-isopropenyl-cyclopentaneglycolic aci 2-methyl-3-quinuclidinyl ester |
| 2-methyl-3-quinuclidyl cyclopentyl(isopropenyl)glycolate |
| 2-cyclopentyl-2-hydroxy-3-methyl-3-butynoic aci 2-methyl-3-quinuclidinyl |
| alpha-isopropenyl-cyclopentaneglycolic aci2-methyl-3-quinuclidinyl ester |
