| 摘要 |
A process is provided for the making of estetrol starting from a 3-A-oxy-estra 1,3,5(10),15-tetraen-17-one, wherein A is a C<SUB>1</SUB>-C<SUB>5 </SUB>alkyl group, preferably a methyl group, or a C<SUB>7</SUB>-C<SUB>12 </SUB>benzylic group, preferably a benzyl group. This process is particularly suitable to industry.
|
