申请人:E. R. Squibb & Sons, Inc.
公开号:US04051248A1
公开(公告)日:1977-09-27
Compounds having the structure ##STR1## and the pharmaceutically acceptable salts thereof, wherein R.sub.1 is hydrogen, halogen, hydroxy, alkanoyloxy, alkoxy, alkylthio, alkyl or trifluoromethyl; R.sub.2 is hydrogen, alkyl or alkenyl; R.sub.3 is hydrogen, halogen or alkyl; R.sub.4 is formyloxy or alkanoyloxy; m is 1 or 2; and n is 0, 1 or 2; have useful physiological activity.
具有结构##STR1##及其药用可接受盐的化合物,其中R.sub.1为氢、卤素、羟基、烷酰氧基、烷氧基、烷基硫基、烷基或三氟甲基;R.sub.2为氢、烷基或烯基;R.sub.3为氢、卤素或烷基;R.sub.4为甲酰氧基或烷酰氧基;m为1或2;n为0、1或2;具有有用的生理活性。