申请人:Leo Pharmaceutical Products LTD
公开号:US05206229A1
公开(公告)日:1993-04-27
##STR1## The present invention relates to compounds of formula (I), in which formula, n is an integer from 1-7; and R.sup.1 and R.sup.2, which may be the same or different, stand for hydrogen, or lower alkyl (but with the proviso that when n=1, R.sup.1 and R.sup.2 cannot simultaneously be hydrogen, nor can R.sup.1 and R.sup.2 simultaneously be an alkyl group independently chosen from methyl, ethyl and normal-propyl, and when n=2, R.sup.1 and R.sup.2 cannot simultaneously be methyl), or lower cyclo-alkyl, or, taken together with the carbon (starred in formula I) bearing the hydroxyl group, R.sup.1 and R.sup.2 can form a saturated or unsaturated C.sub.3 -C.sub.9 carbocyclic ring; and R.sup.3 and R.sup.4 represent either simultaneously hydrogen, or when taken together constitute a bond, such that a double bond connects carbons 22 and 23; including diastereoisomeric forms (e.g. E or Z configuration of the 22,23-double bond; R or S configuration at the starred carbona atom) of the compounds of formula (I), in pure form or in mixtures. The present compounds find use in both the human and veterinary practice and show antiinflammatory and immuno-modulating effects as well as strong activity in inducing differentiation and inhibiting undesirable proliferation of certain cells, including cancer cells and skin cells.
本发明涉及具有公式(I)的化合物,其中n是1-7之间的整数;R1和R2可以是相同的或不同的,代表氢或低级烷基(但是当n=1时,R1和R2不能同时是氢,也不能同时是甲基、乙基和正丙基中独立选择的烷基,当n=2时,R1和R2不能同时是甲基),或低级环烷基,或与带有羟基的碳(在公式I中以星号标记)一起,R1和R2可以形成一个饱和或不饱和的C3-C9碳环;R3和R4要么同时代表氢,要么一起构成一个键,使得一个双键连接碳22和23;包括公式(I)的化合物的对映异构体形式(例如,22,23-双键的E或Z构型;星号碳原子的R或S构型),无论是纯净物还是混合物。本发明的化合物在人类和兽医实践中均有应用,并显示出抗炎和免疫调节效果,以及强烈的诱导分化和抑制某些细胞(包括癌细胞和皮肤细胞)的不希望繁殖的活性。