alpha-(3-methyl-1-butynyl)-cyclohexaneglycolic aci 2-methyl-3-quinuclidinyl |
2-methyl-3-quinuclidyl cyclohexyl(3-methyl-1-butynyl)glycolate a |
2-methyl-3-quinuclidyl cyclohexyl(3-methyl-1-butynyl)glycolate b |
alpha-(3-methyl-1-butynyl)-cyclohexaneglycolic aci2-methyl-3-quinuclidinyl ester |