Non-steroidal antiinflammatory agents.<b>1</b>. Synthesis of 4-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl alkanoic acids by the wittig reaction of quinisatines
作者:Kurt Faber、Hubert StÚckler、Thomas Kappe
DOI:10.1002/jhet.5570210450
日期:1984.7
The Wittigreaction of quinisatines (1a,b) with 1-ethoxycarbonylethyliden- (2a) and ethoxycarbonylmeth-ylenetriphenylphosphorane (2b) has been investigated. In both cases unusual reaction products (3a,b and 12a,b respectively) were isolated in high yields and converted to potential antiinflammatory acids 6, 8, 15 and lactones 4, 7.