Ethyl esters of substituted 3-quinoline car- - oxylic acid

摘要

6-Alkoxy 7-(R1-oxymethyl)4-hydroxy 3-quinoline carboxylic acid of formula: in which R is a C1-10 alkyl group and R1 is a benzyl, phenethyl or C2-11 alkyl group, may be prepared by cyclising (240-480 degrees C) a compound of formula: The quinoline derivatives are active coccidiostats.