The compound of formula I: ##STR1## in which R.sup.1 is alkyl or alkenyl; R.sup.2 is alkyl and R.sup.3 and R.sup.4 are, independently, hydrogen or alkyl; or R.sup.2 is hydrogen and R.sup.3 and R.sup.4 taken together are ortho substituted trimethylene or tetramethylene are useful for increasing blood serum HDL levels.
公式为I的化合物:##STR1## 其中R.sup.1是烷基或烯基;R.sup.2是烷基,R.sup.3和R.sup.4分别是氢或烷基;或者R.sup.2是氢,而R.sup.3和R.sup.4一起取代为邻位的三亚甲基或四亚甲基,可用于增加血清高密度脂蛋白
水平。