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    • 5. 发明专利
    • DE1568093A1
    • 1970-04-30
    • DE1568093
    • 1963-08-22
    • BRITISH DRUG HOUSES LTD
    • MICHAEL BURGESS COLINFEATHER PETERPETROW VLADIMIR
    • A61K31/567A61K31/569C07J1/00C07J75/00C07C167/28
    • 17a - Chlorethynyl - 17b - alkoxy - steroids (wherein the alkyl group contains 1 to 5 carbon atoms) of the androstane and 19-nor-androstane series, some of which are novel, are prepared by reacting an appropriate alkyl halide with an alkali metal derivative of the corresponding 17a - - chlorethynyl - 17b - hydroxy - steroid in an anhydrous non-hydroxylic solvent, such as liquid ammonia, ether or tetrahydrofuran. The alkali metal derivative of the steroid may be formed by dissolving the steroid in the solvent and then treating with an amide of an alkali metal in liquid ammonia or by the interaction of the corresponding 17-oxo-steroid with a chloracetylide of an alkali metal. The steroids may, for example, contain unsaturated linkages at C1, C2, C3, C4, C5(6), C5(10), C6, C8, C9(10), C9(11), C11(12) or C14, 1-, 2-, 3-, 4-, 5-, 6- o 11-hydroxyl groups which may be alkylated or acylated or converted into tetrahydropyranyl derivatives and subsequently regenerated, alkyl, alkenyl and alkynyl groups, particularly 2-, 4- and 6-methyl, oxo groups at positions 3,4,6 and 11, which may require protection as enol ethers, ketals or enamines, and halogen atoms in ring A. 17a - Chlorethynyl - 3 - ethoxy - androsta - 3,5-dien - 17b - ol is prepared from the 17-one, methyl lithium and trans-dichlorethylene. 17a -Chlorethynyl - 3 - n - propoxy - estra - 2,5(10)-dien-17b -ol is prepared by converting estrone 3 - n - propyl ether into 3 - n - propoxy - estra-2,5(10) - dien - 17b - ol, this into the 17 - one, and then treating this as above. Similarly are prepared 17a - chlorethynyl - 3 - methoxy - estra-1,3,5(10),8,14 - pentaen - 17b - ol, 17a - chlor-ethynyl - 3 - ethoxy - estra - 1,3,5(10) - trien-17b -ol and the corresponding 3-n-propoxy compound, 17a - chlorethynyl - 3 - methoxy - estra-1,3,5(10),8 - tetraen - 17b - ol, 17a - chlorethynyl-3 - methoxy - estra - 1,3,5(10),6,8 - pentaen - 17b -ol and 17a - chlorethynyl - 3,3 - ethylenedioxy-4-methyl-androst-4-en -17b -ol. The steroids of the invention, which are variously stated to have claudogenic, ovulation-inhibiting, progestational and estrogenic properties, may be made up into pharmaceutical compositions. Tablets and injection solutions are described.