Novel compounds of the general formula:
wherein a ring A represents a pyrrole or pyrroline ring which may be substituted; B means a divalent 5- or 6-membered homo- or hetero-cyclic group which may be substituted; Y means a hydrogen atom, a halogen atom, or a group bonded through a carbon, nitrogen or sulfur atom; R¹ and R² each means a hydrogen atom or a lower hydrocarbon group which may be substituted; -COOR³ and -COOR⁴ each means a carboxyl group which may be esterified; n means a whole number of 1 through 6, or a salt thereof, possessing suprisingly high inhibitory activity against thymidylate synthase, and their production and use.
通式为
其中环 A 代表可被取代的
吡咯环或
吡咯啉环;B 指可被取代的二价 5 或 6 元同环或杂环基团;Y 指氢原子、卤素原子或通过碳原子、氮原子或
硫原子键合的基团;R¹ 和 R² 各指一个氢原子或一个可被取代的低级烃基;-COOR³ 和 -COOR⁴ 各指一个可被酯化的羧基;n 指 1 到 6 的整数,或其盐,对胸腺
嘧啶酸合成酶具有极高的抑制活性,以及它们的生产和使用。