| 2-hydroxy-2-isopropyl-3-pentynoic aci 3-quinuclidinyl ester |
| 2-hydroxy-2-isopropyl-3-pentynoic acid 3-quinuclidinyl ester |
| 3-quinuclidyl isopropyl(1-propynyl)glycolate a |
| 3-quinuclidyl isopropyl(1-propynyl)glycolate b |
| 2-hydroxy-2-isopropyl-3-pentynoic aci3-quinuclidinyl ester |
