| 摘要 |
<p>Oestrogenic antigonadotropic spermicidal steroidal tropones. 17-R1-3-R2-4-oxo-A-homo-19- norandrosta-1(10), 2,4a-trienes, where R1 is oxo, free or ketalised or OH, free, esterified or etherified of B configuration together with a lower aliphatic hydrocarbon residue, satd. or unsatd.; R2 is amino or OH, free, esterified or etherified; have oestrogenic, antigonadotropic and spermicidal props.</p> |
