Pharmacologically active thiazolo[3,2-a]pyrimidines of the formula ##STR1## wherein A is a bond between the .alpha. and .beta.-carbon atoms or (--CH.sub.2 --) group; R.sub.1 and R.sub.2 represent hydrogen or halogen, C.sub.1 -C.sub.4 alkyl, cyano, CF.sub.3, thienyl, pyridyl, biphenyl, naphtyl, phenyl optionally substituted, ##STR2## wherein R' and R" are hydrogen or alkyl; R.sub.3 represents hydrogen, halogen, alkyl, OH, formyloxy, alkanoyloxy, alkenyloxy; R.sub.4 represents pyridyl optionally substituted by alkyl. The compounds have antiinflammatory, antiulcerogenic and anti-gastric secretory activity.
具有式##STR1##所示结构的药理活性
噻唑并[3,2-a]
嘧啶化合物,其中A为α和β碳原子之间的键或(--
CH2--)基团;R1和R2代表氢、卤素、C1-C4烷基、
氰基、
CF3、
噻吩基、
吡啶基、
联苯基、
萘基、苯基(可选择性取代),##STR2##其中R'和R"为氢或烷基;R3代表氢、卤素、烷基、OH、甲酰氧基、烷酰氧基、烯基氧;R4代表可选择性被烷基取代的
吡啶基。这些化合物具有抗炎、抗溃疡和抗胃分泌活性。