A series of novel oxyethyl derivatives of certain selected enolic oxicam compounds are disclosed, including certain novel oxyethyl derivatives of 4-hydroxy-2-methyl-N-(2-pyridinyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide (piroxicam). These particular compounds are useful in therapy as prodrug forms of the known anti-inflammatory and analgesic oxicams. Said oxyethyl derivatives of enoic oxicam compounds like piroxicam are of the formulae: ##STR1## wherein R.sub.1 is hydrogen, methyl, fluorine or chlorine, and R.sub.2 is hydrogen or --COOR.sub.3 wherein R.sub.3 is alkyl having from one to eight carbon atoms.
揭示了一系列新型的氧乙基衍
生物,包括
4-羟基-2-甲基-N-(2-
吡啶基)-2H-
1,2-苯并噻唑-3-羧酰胺1,1-二氧化物(
吡罗昔康)的某些新型氧乙基衍
生物,这些特定化合物作为已知抗炎和镇痛的
噻唑酮的前药形式在治疗中有用。所述
噻唑酮类化合物的氧乙基衍
生物的
化学式为:##STR1## 其中R.sub.1为氢、甲基、
氟或
氯,R.sub.2为氢或--COOR.sub.3,其中R.sub.3为具有1至8个碳原子的烷基。