- 5-(p-톨루오일)-1-메틸피롤-2-아세트산의 합성
- Synthesis of 5-(p-Toluoyl)-1-Methylpyrrole-2-Acetic Acid [Tolmetin]
- ㆍ 저자명
- 최홍대,마정주,Choi. Hong-Dae,Ma. Jung-Joo
- ㆍ 간행물명
- 약학회지
- ㆍ 권/호정보
- 1992년|36권 4호|pp.341-344 (4 pages)
- ㆍ 발행정보
- 대한약학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
A facile method for tolmetin, which is a potent antiinflammatory agent, is described. Friedel-Crafts reaction of 1-methylpyrrole with ethyl ${alpha}-chloro-{alpha}-(methylthio)acetate$ (1) gave ethyl ${alpha}-methylthio$-1-methyl-2-pyrroleacetate (4), which was readily converted into ethyl 1-methyl-2-pyrroleacetate (5) by reductive desulfurization with zinc dust in acetic acid. Tolmetin was synthesized by Friedel-Crafts acylation of (5) with p-toluoyl chloride, followed by hydrolysis of the resultant ethyl 5-(p-toluoyl)-1-methylpyrrole-2-acetate (6).