Use of xanthines for the preparation of a medicament effective for inhibiting the effects of allograft reaction in humans
申请人:HOECHST-ROUSSEL
PHARMACEUTICALS INCORPORATED
公开号:EP0493682A2
公开(公告)日:1992-07-08
A family of compounds effective in inhibiting the effects of allograft reaction, such as graft versus host reaction (GVHR), in a human is comprised of 7-(oxoalkyl) 1,3-dialkyl xanthines of the formula
in which R1 and R2 are the same or different and are selected from the group consisting of straight-chain or branched alkyl radicals with 2 to 6 carbon atoms, cyclohexyl, alkoxyalkyl and hydroxyalkyl radicals, and A represents a hydrocarbon radical with up to 4 carbon atoms which can be substituted by a methyl group. Another family of effective compounds is comprised of compounds of the formula
wherein at least one of R1 and R3 is either
a) a branched hydroxyalkyl group of the formula
in which R4 stands for an alkyl group with 1 to 3 carbon atoms and n stands for a whole number from 2 to 5, the other R1 or R3 group that may optionally be present stands for a hydrogen atom or an aliphatic hydrocarbon group R5 with up to 6 carbon atoms, whose carbon chain may be interrupted by up to 2 oxygen atoms or may be substituted with a hydroxy or oxo group, or
b) an oxoallyl group of the formula
wherein R6 is C1 -C6 and p is 2, 3 or 4, the remaining R1 or R3 being as defined above, and R2 is an alkyl group C1-C4;The inhibition of GVHR is indicated in human transplant recipients.
一种能有效抑制异体移植反应(如移植物与宿主反应(GVHR))对人体影响的化合物家族由 7-(氧代烷基)1,3-二烷基黄嘌呤组成,其式为
其中 R1 和 R2 相同或不同,选自由 2 至 6 个碳原子的直链或支链烷基、环己基、烷氧基烷基和羟基烷基组成的组,A 代表可被甲基取代的最多 4 个碳原子的烃基。另一族有效化合物包括如下式的化合物
其中 R1 和 R3 中至少有一个是
a) 式中的支链羟烷基
其中 R4 代表具有 1 至 3 个碳原子的烷基,n 代表 2 至 5 的整数,另一个可选的 R1 或 R3 基团代表氢原子或具有最多 6 个碳原子的脂肪族烃基 R5,其碳链可被最多 2 个氧原子打断,或可被羟基或氧代基团取代,或
b) 式中的氧代烯丙基
其中 R6 为 C1 -C6,p 为 2、3 或 4,其余 R1 或 R3 如上定义,R2 为 C1-C4 烷基;GVHR 的抑制作用适用于人体移植受者。