This invention relates to novel thiazolylbenzofuran derivatives of formula (I) wherein R1 is lower alkyl, L is single bond or lower alkylene optionally substituted with aryl, oxo or hydroxy, and Q is a heterocyclix group optionally substituted with one or more suitable substituent(s); or lower alkoxy substituted with aryl which is substituted with one or more suitable substituent(s) and at least one of which is lower alkoxy optionally substituted with cyano, protected carboxy, carboxy, lower alkylene, a heterocyclic group optionally substituted with oxo, or amidino optionally substituted with hydroxy or lower alkoxy, or its salt, which possess activities as leukotriene and SRS-A antagonists or inhibitors.
                            本发明涉及式(I)的新型
噻唑基
苯并呋喃衍
生物,其中 R1 是低级烷基,L 是单键或可选被芳基、氧代或羟基取代的低级亚烷基,Q 是可选被一个或多个合适取代基取代的杂环基团;或被芳基取代的低级烷氧基,该芳基被一个或多个合适的取代基取代,且其中至少一个低级烷氧基被
氰基、受保护的羧基、羧基、低级亚烷基、可选被氧代取代的杂环基团或可选被羟基或低级烷氧基取代的脒基取代,或其盐,具有作为
白三烯和 SRS-A 拮抗剂或
抑制剂的活性。