申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0322209A1
公开(公告)日:1989-06-28
Polymers of structure (I):
in which, R¹ is a saturated or unsaturated C₆ to C₂₀ alkyl group; R² and R³ are the same or different and are each C₁₋₄alkyl; X⁻ is a physiologically acceptable counter ion; a, b and c are numbers which indicate the relative molar percentages of the units present in a random distribution in said polymer, (b) being from about 0.5 to about 10 molar percent, and (c) being from about 30 to about 99 molar percent; and n is a number indicating the number of repeating units in said polymer, processes for their preparation, intermediates useful in their preparation, pharmaceutical compositions containing them and their use in therapy for the lowering of serum cholesterol levels in humans.
结构(I)的聚合物:
其中,R¹ 是饱和或不饱和的 C₆ 至 C₂₀ 烷基;R² 和 R³ 相同或不同,且各自是 C₁₋₄ 烷基;X- 是生理上可接受的反离子;a、b 和 c 是表示所述聚合物中以无规分布存在的单元的相对摩尔百分比的数字,(b) 约为 0.5至约10摩尔%,(c)为约30至约99摩尔%;n是表示所述聚合物中重复单元数目的数字。