| alpha-(1-propynyl)-mandelic aci 1-methyl-3-pyrrolidinyl ester |
| 1-methyl-3-pyrrolidinyl phenyl(1-propynyl)glycolate a |
| 1-methyl-3-pyrrolidinyl phenyl(1-propynyl)glycolate b |
| alpha-(1-propynyl)mandelic acid 1-methyl-3-pyrrolidinyl ester |
| alpha-(1-propynyl)-mandelic aci1-methyl-3-pyrrolidinyl ester |
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