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US 4,731,480 AGranted
Process for preparing 2-acyl-3,4-dialkoxyanilines
AssigneeOrtho Pharmaceutical Corporation
InventorsRichard A. Conley, Donald L. Barton
Life of this patent
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Abstract
A process for preparing 2-acyl-3,4-dialkoxyanilines is described. The 2-acyl-3,4-dialkoxyanilines are useful intermediates in the preparation of 5,6-dialkoxy-4-alkyl-2(1H)-quinazolinones. The substituted quinazolinones are active as cardiotonic agents.
Claims2
A compound of the formula ##STR4## wherein R.sub.1, R.sub.2 and R.sub.3 are lower alkyl.
Dependencies are inferred from the claim text.