申请人:John Wyeth & Brother Ltd.
公开号:US04784996A1
公开(公告)日:1988-11-15
Compounds of formula ##STR1## wherein A represents a lower alkylene chain optionally containing one double or triple bond, RO represents (lower)alkoxy, aryl(lower)alkoxy, hydroxy or protected hydroxy, R.sup.1 and R.sup.2 which may be the same or different each represent hydrogen, hydroxyl, lower alkyl, lower alkoxy, halo(lower)alkyl, halogen, amino or mono- or di(lower)alkylamino and R.sup.3 and R.sup.4 each independently represent hydrogen or lower alkyl and their pharmaceutically acceptable acid addition salts are useful as hypoglycaemics or as intermediates for hypoglycaemics.
式子为##STR1##的化合物,其中A代表一个较低的烷基链,可选择含有一个双键或三键,RO代表(较低的)烷氧基,芳基(较低的)烷氧基,羟基或保护羟基,R.sup.1和R.sup.2可以相同或不同,分别代表氢,羟基,较低的烷基,较低的烷氧基,卤(较低的)烷基,卤素,氨基或单烷基或二(较低的)烷基氨基,R.sup.3和R.sup.4各自独立地代表氢或较低的烷基,它们的药学上可接受的酸加合物盐可用作降糖剂或降糖剂的中间体。