SUBSTITUTED 2-PYRIDINYL-6,7,8,9-TETRAHYDROPYRIMIDOC1,2-AEPRIMIDIN-4-ON- AND 7-PYRIDINYL-2,3-DIHYDROIMIDAZO-C1,2-AOPYRIMIDIN-5 (1H) ON DERIVATIVES

摘要

The invention relates to 3-ketoester of formula (IV) €ƒ€ƒ€ƒwherein R1 represents a 2, 3 or 4-pyridine ring optionally substituted by a C 3-6 cycloalkyl group, a C 1-4 alkyl group, a C 1-4 alkoxy group, a benzyl group or a halogen atom, R5 is an halogen atom and R is an alkyl.