申请人:Merrell Pharmaceuticals, Inc.
公开号:US05869475A1
公开(公告)日:1999-02-09
The invention discloses 3-ketosteroids of the following formula used to inhibit steroid 5.alpha.-reductase: ##STR1## wherein R is OH, C.sub.1 -C.sub.6 alkanoyl, C.sub.1 -C.sub.6 alkanoyloxy, C.sub.1 -C.sub.4 alkanol, COCH.sub.2 OH, CO.sub.2 H, CONR.sub.7 R.sub.8, cyclopropoxy, acetylthioalkane, cyclopylamino, 2-2-dimethyldioxolan-4-yl, 1,2-dihydroxyethyl and C.sub.1-4 alkanethiol; R.sub.1 is hydrogen, hydroxy or C.sub.1-6 alkyl; R.sub.1 and R.sub.2 together may indicate .dbd.O, that is an oxygen double bonded to the 17 carbon; R.sub.2, R.sub.3 and R.sub.4 are each independently hydrogen or C.sub.1-6 alkyl; R.sub.5 and R.sub.6 are each independently hydrogen or OH; R.sub.5 and R.sub.6 together may indicate .dbd.O, that is an oxygen double bonded to the 11 carbon; R.sub.7 is hydrogen or C.sub.1-8 alkyl; R.sub.8 is C.sub.1-8 alkyl; and with the proviso that, when R is OH, then R.sub.1 is hydrogen; and with the proviso that, when R.sub.5 is OH, then R.sub.6 is hydrogen.
该发明揭示了以下公式的3-酮类固醇,用于抑制类固醇5α-还原酶:##STR1## 其中R为OH,C.sub.1-C.sub.6烷酰基,C.sub.1-C.sub.6烷氧基,C.sub.1-C.sub.4烷醇,COCH.sub.2OH,CO.sub.2H,CONR.sub.7R.sub.8,环丙氧基,乙酰硫代烷基,环戊氨基,2-2-二甲基二氧杂环戊烷-4-基,1,2-二羟乙基和C.sub.1-4烷硫醇;R.sub.1为氢,羟基或C.sub.1-6烷基;R.sub.1和R.sub.2可以共同表示.dbd.O,即与第17碳双键的氧原子;R.sub.2,R.sub.3和R.sub.4各自独立地是氢或C.sub.1-6烷基;R.sub.5和R.sub.6各自独立地是氢或羟基;R.sub.5和R.sub.6可以共同表示.dbd.O,即与第11碳双键的氧原子;R.sub.7为氢或C.sub.1-8烷基;R.sub.8为C.sub.1-8烷基;但是,当R为OH时,R.sub.1为氢;而且,当R.sub.5为OH时,R.sub.6为氢。