| 17-hydroxy-19-nor-17-alpha-pregn-5(10)-en-3-on |
| 17-alpha-ethyl-19-nor-delta(sup 5(10))-androsten-17-beta-ol-3-one |
| 17-beta-hydroxy-19-nor-17-alpha-pregn-5(10)-en-3-one |
| 17-hydroxy-19-nor-17-alpha-pregn-5(10)-en-3-one |
| 17-beta-hydroxy-19-nor-17-alpha-pregn-5(10)-en-3-on |
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