SUBSTITUTED 4H-3,1-BENZOXAZIN-2-ONES

摘要

This invention is directed to novel benzoxazin-2-ones of the formula (I) wherein A is a sulfur atom or an SO, SO2, R-N=S, or R-N=SO2 group where R is a hydrogen atom or an acyl group; D is an alkylene group; R1 is an alkyl, phenylalkyl, cycloalkyl, or phenyl group; R4 is a hydrogen atom or an alkyl group; R5 is a hydrogen or halogen atom or a nitro or alkyl group; and R6 is a hydrogen or halogen atom or an alkyl group, having valuable pharmacological properties, particularly an antithrombotic activity. The compounds of Formula I may be prepared by the methods used for analogous compounds.