The present invention provides novel compounds of formula ##STR1## the stereochemically isomeric forms thereof, and the pharmaceutically acceptable acid addition salts thereof, wherein A and B taken together form a bivalent radical of formula: --N.dbd.CH-- (a), --CH.dbd.N-- (b), --CH.sub.2 --CH.sub.2 -- (c), --CH.dbd.CH-- (d) --C(.dbd.O)--CH.sub.2 -- (e), --CH.sub.2 --C(.dbd.O)-- (f); R.sup.1 is hydrogen, C.sub.1-6 alkyl, or halo; R.sup.2 is hydrogen or halo; R.sup.3 is hydrogen; C.sub.1-8 alkyl; C.sub.3-6 cycloalkyl or C.sub.1-8 alkyl substituted with hydroxy, oxo, C.sub.3-6 cycloalkyl or aryl. Het is five- or six-membered optionally substituted heterocyclic ring. The use as a medicine, especially as a lipid lowering agent is disclosed as well as pharmaceutical compositions and processes for preparing compounds and compositions.
本发明提供了公式##STR1##的新化合物,其立体
化学异构体形式以及其药学上可接受的酸加成盐,其中A和B共同形成公式的二价基团:--N.dbd.CH--(a),--CH.dbd.N--(b),--CH.sub.2--CH.sub.2--(c),--CH.dbd.CH--(d)--C(.dbd.O)--CH.sub.2--(e),--CH.sub.2--C(.dbd.O)--(f); R.sup.1是氢,C.sub.1-6烷基或卤素; R.sup.2是氢或卤素; R.sup.3是氢; C.sub.1-8烷基; C.sub.3-6环烷基或C.sub.1-8烷基,其被氢氧基,氧代,C.sub.3-6环烷基或芳基取代。Het是五元或六元的可选取代杂环。本发明还公开了作为药物,特别是作为降脂剂的用途,以及制备化合物和组合物的制药组合物和过程。