A thiophene derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are a lower alkyl group, Ring A is a substituted or unsubstituted phenyl group and p is an integer of 1 to 3, or a salt thereof and processes for preparing the same are disclosed. The thiophene derivative (I) is useful as the regulator of gastrointestinal tract motility.
本发明涉及一种
噻吩衍
生物,其
化学式为:##STR1##其中,R.sup.1,R.sup.2和R.sup.3是较低的烷基,环A是取代或未取代的苯基,p是1到3的整数,或其盐,并公开了其制备过程。该
噻吩衍
生物(I)可用作胃肠道运动调节剂。