Procedure for the obtaining of progestativally active energy esters of the carboxylicode acid the pregnadine-17 alfaol-3,20-diona (Machine-translation by Google Translate, not legally binding)

摘要

Process for the preparation of progestatively active ethers esters of the carboxylic acid of Δ 1,4-pregnadiene-17 α -ol-3,20-dione, characterized in that in the Δ 1,4-pregnadiene-17 α -ol -3,20-dione the hydroxyl group in position 17 is esterified in the known way, or in the esters of 17 α -carboxyl acid of pregnadiene-17 α -ole of the general formula ** (See formula) ** that instead of the oxo group in position 3 or of the oxo group in position 20 or of one of the two double bonds, they carry a convertible group in the known manner in the above-mentioned oxo groups or in said double bonds, said convertible group is transformed by methods known in the oxo group or in the double bond, lately pursued. (Machine-translation by Google Translate, not legally binding)