abstract |
PROCEDURE TO PREPARE NEW AND USEFUL PYRIDONCARBOXYL ACID DERIVATIVES OF FORMULA (I): WHERE R IS A HYDROGEN ATOM OR A LOWER ALKYL GROUP, R1 IS A LOWER ALKYL GROUP OR A CYCLOAL CYCLE ATOMO HALOGEN ATOM, OR Y AND R1 TAKEN TOGETHER, REPRESENT R2 IS A HYDROGEN ATOM, A LOWER ALKYL GROUP, AN ALCOXYCARBONYL GROUP OR AN ACILO GROUP YN ES0 OR 1. |