| 3-methyl-1-(2-propynyl)-3-(2-thienyl)-pyrrolidin ethanedioate |
| 3-methyl-1-(2-propynyl)-3-(2-thienyl)pyrrolidine ethanedioate |
| methyl-3 n-(propyne-2-yl) (thienyl-3)-3 pyrrolidine oxalate (1:1) |
| 3-methyl-1-(2-propynyl)-3-(2-thienyl)-pyrrolidinethanedioate |
