170359-62-3Relevant articles and documents
9-Hydroxy-pyrido?1,2-a!pyrimidin-4-one ether derivatives
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, (2008/06/13)
The present invention is concerned with novel compounds having the formula STR1 the pharmaceutically acceptable acid addition salts thereof and the stereochemically isomeric forms thereof, wherein Alk represents C1-4 alkanediyl; D is a bicyclic heterocycle of formula STR2 wherein each R1 independently is C2-6 alkenyl; C2-6 alkynyl; C3-6 cycloalkyl optionally substituted with C1-4 alkyl; C1-19 alkyl optionally substituted with C3-6 cycloalkyl, halo, C1-6 alkyloxy or cyano; and each R2 independently is hydrogen or C1-4 alkyl. Novel compounds; compositions; processes for preparing novel compounds and intermediates are described.