申请人:Leo Pharmaceutical Products Ltd. A/S (Løvens kemiske Fabrik Produktionsaktiesel skab)
公开号:US06399797B1
公开(公告)日:2002-06-04
The present invention relates to compounds of formula (I), in which formula X is hydrogen or hydroxy or protected hydroxy; R1 an R2 stand for hydrogen, methyl or ethyl, or, when taken together with the carbon atom bearing the group X, R1 and R2 can form a C3-C5 carbocyclic ring; Q is a C3-C6 hydrocarbylene, hydrocarbylene indicating the diradical obtained after removal of 2 hydrogen atoms for a straight or banched, saturated or unsaturated hydrocarbon, in which one of any CH2 groups may optionally be replaced by an oxygen atom or a carbonyl group, such that the carbon atom (C-22) directly bonded to C-20 is an sp2 or sp3 hybridized carbon atom, i.e. bonded to 2 or 3 other atoms; and in which another of the CH2 groups may be replaced by phenylene, and where Q may optionally be substituted with one or more hydroxy or C1-C4-alkoxy groups. These compounds have been discovered to possess exceptionally high immunosuppressive activites together with high tumour cell proliferation inhibiting activities.
本发明涉及式(I)的化合物,其中式中X为氢或羟基或保护羟基;R1和R2代表氢、甲基或乙基,或者与带有基团X的碳原子结合在一起时,R1和R2可以形成一个C3-C5碳环;Q为C3-C6烃基烯,烃基烯表示去除2个氢原子后得到的二元基,可以是直链或支链、饱和或不饱和的碳氢化合物,其中任何一个CH2基团可以选择性地被氧原子或羰基取代,使得直接与C-20键合的碳原子(C-22)是sp2或sp3杂化的碳原子,即与其他2个或3个原子键合;另一个CH2基团可以被苯基取代,Q也可以选择性地被一个或多个羟基或C1-C4-烷氧基团取代。已经发现这些化合物具有异常高的免疫抑制活性以及高的抑制肿瘤细胞增殖活性。