| 摘要 |
Polymers of structure (I) <CHEM> in which X is a co-monomer unit; X<1> is a cross-linking unit; R<1> is a saturated or unsaturated C6 to C20 alkyl group; R<2> and R<3> are the same or different and are each C1-4alkyl; Y <-> is a physiologically acceptable counter ion; and 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, processes for their prepapration, pharmaceutical compositions containing them, and their use in therapy as cholesterol lowering agents. |
