| 5-dien-20-yn-17-ol, 3-(cyclopentyloxy)-19-nor-17-alpha-pregna- acetate |
| 5-dien-20-yn-17-ol, 3-(cyclopentyloxy)-19-nor-17-alpha-pregna- acetate (es |
| 3-(cyclopentyloxy)-, acetate, (17-alpha)-19-norpregna-5-dien-20-yn-17-ol |
| 3-(cyclopentyloxy)-19-nor-17-alpha-pregna-3,5-dien-20-yn-17-ol acetate |
| 3-(cyclopentyloxy)-19-nor-17-alpha-pregna-3,5-dien-20-yn-17-ol acetate (ester |
| 3-cyclopentyl enol ether of norethindrone acetate |
| norethindrone acetate 3-cyclopentyl enol ether |
| quingestanol acetate |
| w 4540 |
| 5-dien-20-yn-17-ol,3-(cyclopentyloxy)-19-nor-17-alpha-pregna- acetate |
