| alpha-(2-methylbut-1-yn-3-en-1-yl)-2-thiopheneglycolic aci 3-quinuclidinyl |
| 3-quinuclidyl-2-thienyl(3-methyl-but-1-yn-3-enyl)glycolate |
| alpha-(2-methylbut-1-yn-3-en-1-yl)-2-thiopheneglycolic acid 3-quinuclidinyl e |
| 5-methyl-5-(2-thienyl)-hexa-3-yn-5-enoic aci 3-quinuclidinyl ester |
| alpha-(2-methylbut-1-yn-3-en-1-yl)-2-thiopheneglycolic aci 3-quinuclidinyl ester |
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