申请人:Merck & Co., Inc.
公开号:EP0072013A1
公开(公告)日:1983-02-16
Pyrrole compounds of the structural formula:
or a pharmaceutically acceptable salt, ester or amide thereof have been prepared via hydrolysis of a precursor-ester after high temperature decarboxylation or from direct acidic decarboxylation of a precursor diacid. In the above formula, Ar is phenyl, substituted phenyl, pyridyl, pyrryl, substituted pyrryl, furyl or thienyl; R is, e.g., hydrogen, loweralkyl, lowercycloalkyl, lower(cycloalkyl-alkyl), loweralkenyl or halo-loweralkyl; R' is hydrogen or loweralkyl; R2 is hydrogen, loweralkyl or halo; R3 is, e.g., hydroxy, loweralkoxy, substituted loweralkoxy, amino, substituted amino, morpholinyl, glucosamino or heterocyclyl-oxy; X is -(CH2)0-10-, -COCH2- or -CH2CO-; and Y is oxygen, sulfur, sulfinyl, sulfonyl, CH2 or H with the proviso that when Y is CH2-, Ar can only be pyrryl, and when Y is H, Ar is pyrryl and R is not present. The compounds are analgesic and anti-inflammatory agents of high activities but low ulcerogenic side effects.
结构式如下的吡咯化合物:
或其药学上可接受的盐、酯或酰胺是通过前体酯经高温脱羧水解或前体二元酸直接酸性脱羧制备的。在上式中,Ar 是苯基、取代苯基、吡啶基、吡咯基、取代吡咯基、呋喃基或噻吩基;R 是氢、低级烷基、低级环烷基、低级(环烷基-烷基)、低级烯基或卤代低级烷基;R'是氢或低级烷基;R2 是氢、低级烷基或卤代;R3 是,例如、羟基、低级烷氧基、取代的低级烷氧基、氨基、取代的氨基、吗啉基、葡糖胺基或杂环氧基;X 是-(CH2)0-10-、-COCH2-或-CH2CO-;Y 是氧、硫、亚砜基、磺酰基、CH2 或 H,但条件是当 Y 是 CH2- 时,Ar 只能是吡咯基,当 Y 是 H 时,Ar 是吡咯基,R 不存在。这些化合物是镇痛和消炎药,活性高,但对溃疡的副作用小。