Compounds of formula (I): ##STR1## [wherein R.sup.1 represents a group of formula (II) or (III): ##STR2## R.sup.2 is alkyl, alkenyl or alkynyl; R.sup.3 and R.sup.4 are each hydrogen, alkyl, alkenyl or alkynyl; R.sup.5 is hydrogen or a carboxy-protecting group; R.sup.a is hydrogen or a group of formula and --OR.sup.6 ; R.sup.6, R.sup.6a and R.sup.6b are each hydrogen, a hydroxy-protecting group, alkyl, alkanesulfonyl, halogenated alkanesulfonyl or arylsulfonyl] and their salts and esters have the ability to inhibit the synthesis of cholesterol, and can thus be used for the treatment and prophylaxis of hypercholesterolemia and of various cardiac disorders.
式(I)的化合物:##STR1## [其中R.sup.1代表式(II)或(III)的基团:##STR2## R.sup.2是烷基,烯基或炔基;R.sup.3和R.sup.4分别是氢,烷基,烯基或炔基;R.sup.5是氢或羧基保护基;R.sup.a是氢或式和--OR.sup.6的基团;R.sup.6,R.sup.6a和R.sup.6b分别是氢,羟基保护基,烷基,烷基磺酰,卤代烷基磺酰或芳基磺酰]及其盐和酯具有抑制
胆固醇合成的能力,因此可用于治疗和预防高
胆固醇血症和各种心脏疾病。