Non-steroidal antiinflammatory agents. VI. Synthesis of 10-oxo-5<i>H</i>-pyrrolo[1,2-<i>b</i>]isoquinoline-3-acetic Acid, a conformationally restricted analogue of tolmetin
作者:Federico Corelli、Antonio Garofalo、Silvio Massa、Romano Silvestri、Pierpaolo Prosini、Marino Artico
DOI:10.1002/jhet.5570270557
日期:1990.7
The synthesis of 10-oxo-5H-pyrrolo[1,2-b]isoquinoline-3-acetic acid 4, a tricyclic analogue of tolmetin which might show significant analgesic-antiinflammatory activity, has been accomplished in four steps. Alkylation of ethyl 2-pyrrolylglyoxylate (15) with 2-cyanobenzyl bromide afforded derivative 16, which was transformed by the Huang-Minion reaction into the dicarboxylic acid 6. Cyclization of this
托美汀的三环类似物10-氧代-5 H-吡咯并[1,2 - b ]异喹啉-3-乙酸4的合成可能显示出明显的止痛抗炎活性,已分四个步骤完成。2-吡咯基乙醛酸乙酯(15)与2-氰基苄基溴的烷基化反应得到衍生物16,其通过黄-Minion反应转化为二羧酸6。将该关键中间体环化为17,然后进行碱水解,得到10-氧代-5 H-吡咯并[1,2-6]异喹啉-3-乙酸(4)。还讨论了6的各种尝试合成。