New thieno [2,3-b] pyrrole compounds of the formula: ##STR1## in which: R is hydrogen, (C.sub.1 -C.sub.5) alkyl, alkali or alkaline earth metals ammnonium or mono- di- or tri-(C.sub.1 -C.sub.5) alkylammnonium; R.sub.1 is hydrogen, or (C.sub.1 -C.sub.5) alkyl; R.sub.2 is hydrogen, (C.sub.1 -C.sub.5) alkyl, phenyl or phenyl-(C.sub.1 -C.sub.5) alkyl; R.sub.3 and R.sub.4, the same or different are each hydrogen, halogen, (C.sub.1 -C.sub.5) alkyl, (C.sub.1 -C.sub.5) alkoxy, or R.sub.3 and R.sub.4 together represent: --CH.dbd.CH--CH.dbd.CH--. These new compounds may be used as medicines especially in the treatment of acute or chronic pain.
新的
噻吩[2,3-b]
吡咯化合物的
化学式为:##STR1## 其中:R为氢,(C.sub.1-C.sub.5)烷基,碱
金属或碱土
金属
铵或单烷基、双烷基或三烷基(C.sub.1-C.sub.5)
铵;R.sub.1为氢或(C.sub.1-C.sub.5)烷基;R.sub.2为氢,(C.sub.1-C.sub.5)烷基,苯基或苯基-(C.sub.1-C.sub.5)烷基;R.sub.3和R.sub.4相同或不同,分别为氢,卤素,(C.sub.1-C.sub.5)烷基,(C.sub.1-C.sub.5)烷氧基,或R.sub.3和R.sub.4在一起代表:--CH.dbd.CH--CH.dbd.CH--。这些新化合物可用作药物,特别是用于治疗急性或慢性疼痛。