Tetrahedron

Synthesis of 3-fluoro-2-substituted amino-5, 12-dihydro-5-oxobenzoxazolo [3, 2-a] quinoline-6-carboxylic acids employing the tandem double ring closure reaction of …

SJ Chung, DH Kim

Index: Chung, Sang J.; Kim, Dong H. Tetrahedron, 1995 , vol. 51, # 46 p. 12549 - 12562

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Citation Number: 15

Abstract

A general synthetic method for the preparation of 5, 12-dihydro-5-oxobenzoxazolo [3, 2-a] quinoline-6-carboxylic acids has been developed making use of the tandem double ring closure reaction of N-(2-hydroxyphenyl) anthranilic acid as the key step. 2-(4-