Synthesis and Testosterone 5.ALPHA.-Reductase-Inhibitory Activity of 4-Aza-5.ALPHA.-androstane-17-carboxamide Compound with an Aromatic Moiety in the C-17 Carbamoyl Group.
Azasteroid compounds for the treatment of prostatic hypertrophy, their preparation and use
申请人:Sankyo Company Limited
公开号:EP0484094A2
公开(公告)日:1992-05-06
Compounds of formula (I) :
(in which : R1 is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or a heterocyclic-substituted alkyl group ; R2 is an aryl-substituted alkyl group, a heterocyclic-substituted alkyl group or a diarylamino group ; R3 is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or an alkenyl group having from 3 to 6 carbon atoms ; and each of the bonds represented by α-β and y-8 is a carbon-carbon single bond or a carbon-carbon double bond ;) and pharmaceutically acceptable salts and esters thereof are useful for the treatment and prophylaxis of prostatic hypertrophy. We also provide processes for their preparation.
Azasteroid compounds for the treatment of prostatic hypertrophy, their
申请人:Sankyo Company, Limited
公开号:US05302621A1
公开(公告)日:1994-04-12
Compounds of formula (I): ##STR1## (in which: R.sup.1 is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or a heterocyclic-substituted alkyl group; R.sup.2 is an aryl-substituted alkyl group, a heterocyclic-substituted alkyl group or a diarylamino group; R.sup.3 is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or an alkenyl group having from 3 to 6 carbon atoms; and each of the bonds represented by .alpha.-.beta. and .gamma.-.delta. is a carbon-carbon single bond or a carbon-carbon double bond;) and pharmaceutically acceptable salts and esters thereof are useful for the treatment and prophylaxis of prostatic hypertrophy. We also provide processes for their preparation.
Synthesis and Testosterone 5.ALPHA.-Reductase-Inhibitory Activity of 4-Aza-5.ALPHA.-androstane-17-carboxamide Compound with an Aromatic Moiety in the C-17 Carbamoyl Group.
作者:Hitoshi KURATA、Koki ISHIBASHI、Shinichi SAITO、Takakazu HAMADA、Hiroyoshi HORIKOSHI、Yoji FURUKAWA、Koichi KOJIMA
DOI:10.1248/cpb.44.115
日期:——
A series of 4-aza-5α-androstane compounds with one or two aromatic moieties in the carbamoyl group at the C-17 position were synthesized and their inhibitory activities for rat and human prostatic testosterone 5α-reductase were tested in vitro. Compounds with one aromatic moiety in the carbamoyl group showed high inhibitory activity for rat 5α-reductase, but little for human prostatic 5α-reductase. On the other hand, compounds with two aromatic moieties had potent inhibitory activities for both rat and human 5α-reductase. The structural requirements for potent inhibition for both enzymes are discussed in relation to the spatial arrangement of the C-17 carbamoyl group.