申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0385686A2
公开(公告)日:1990-09-05
Polystyrene polymers of structure :
in which, R' and R2 are the same or different and are each C1-4 alkyl; R3 is (CH2)nR4 in which R4 is C3-6 cycloalkyl or a bicyclic carbocyclic ring of up to 10 carbon atoms and n is 1 to 12, or R3 is (CH2)nCH = RSR6 in which n is 1 to 12 and R5 and R6 together form a C3-6 cycloalkyl ring or a bicyclic carbocyclic ring of up to 10 carbon atoms; R7 is hydrogen or a group CH2NR1R2R3X-; X- is a counter ion; a, b and c are numbers which indicate the relative molar percentages of the units present in said polymer, (b) being from about 1 to about 10 molar percent, and (c) being from about 30 to about 98 molar percent; m is a number indicating the degree of polymerisation of said polymer, processes for their preparation, compositions containing them and their use in therapy as bile acid sequestering agents.
结构如下的聚苯乙烯聚合物
其中,R'和 R2 相同或不同,均为 C1-4 烷基;R3为(CH2)nR4,其中R4为C3-6环烷基或碳原子数不超过10的双环碳环,n为1至12,或R3为(CH2)nCH=RSR6,其中n为1至12,R5和R6共同形成C3-6环烷基环或碳原子数不超过10的双环碳环;R7为氢或基团CH2NR1R2R3X-;X-为反离子;a、b 和 c 是数字,表示存在于所述聚合物中的单元的相对摩尔百分比,(b) 约为 1 至约 10 摩尔百分比,(c) 约为 30 至约 98 摩尔百分比;m 是数字,表示所述聚合物的聚合度、其制备工艺、含有它们的组合物以及它们在治疗中作为胆汁酸螯合剂的用途。