申请人:Klinge Pharma GmbH & Co.
公开号:US05047431A1
公开(公告)日:1991-09-10
Novel (E)-1-[4'-(2-alkylaminoethoxy)phenyl]-1- (3'-hydroxyphenyl)-2-phenylbut-1-enes of the general formula ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different, provided that, when R.sup.1 and R.sup.2 are the same, each of them is a methyl or ethyl radical, and when R.sup.1 and R.sup.2 are different, one of them is hydrogen and the other is a methyl or ethyl radical, and the therapeutically compatible salts thereof, have a marked anti-estrogenic effect and are suitable for treating hormone-dependent mammary tumors. The compounds can be prepared by dehydrating carbinols of the general formula ##STR2## wherein R.sup.1 and R.sup.2 may be the same or different, provided that, when R.sup.1 and R.sup.2 are the same, each of them is a methyl or ethyl radical, and when R.sup.1 and R.sup.2 are different, one of them is a benzyl radical and the other is a methyl or ethyl radical; and wherein R.sup.3 is hydrogen or an easily hydrolyzable protecting group, through the action of mineral acid while removing any protecting group present, isolating through crystallization the E-form from the pair of isomers obtained, and removing by hydrogenolysis any benzyl group present. Compositions comprising the subject 1,1,2-triphenylbut-1-ene derivatives are described also. The corresponding novel 1,1,2-triphenylbut-1-ene derivatives having the (Z) configuration are also disclosed.
该专利描述了一种通式为##STR1##的(E)-1-[4'-(2-烷基氨基乙氧基)苯基]-1-(3'-羟基苯基)-2-苯基丁-1-烯类化合物及其治疗上适用的盐,其中R.sup.1和R.sup.2可以相同也可以不同,但当它们相同时,它们都是甲基或乙基基团,而当它们不同时,其中一个是氢,另一个是甲基或乙基基团。该化合物具有明显的抗雌激素效应,适用于治疗激素依赖性乳腺肿瘤。这些化合物可以通过脱水通式为##STR2##的羟基化合物制备而成,其中R.sup.1和R.sup.2可以相同也可以不同,但当它们相同时,它们都是甲基或乙基基团,而当它们不同时,其中一个是苄基,另一个是甲基或乙基基团;其中R.sup.3是氢或易水解的保护基团。通过矿酸作用去除任何存在的保护基团,通过结晶从得到的异构体对中分离出E-型,通过氢解去除任何存在的苄基。该专利还描述了包含该1,1,2-三苯基丁-1-烯衍生物的组合物。还披露了相应的新型1,1,2-三苯基丁-1-烯衍生物,其具有(Z)构型。