| 摘要 |
A pyrazolo[1,5-a]pyrimidine derivative represented by general formula (1) an d having such a potent analgesic effect that it is useful as an analgesic, wherein R1 represents hydrogen, lower alkyl, cycloalkyl, thienyl, furyl, low er alkenyl or phenyl; R2 represents naphthyl, cycloalkyl, furyl, thienyl, pyridyl, phenoxy or phenyl; R3 represents hydrogen, phenyl or lower alkyl; R 4 represents hydrogen, lower alkyl, lower alkoxy-carbonyl, phenyl-substituted lower alkyl, phenyl or halogen; R5 represents hydrogen or lower alkyl; R6 represents hydrogen, lower alkyl, phenyl-substituted lower alkyl or benzoyl; Q represents carbonyl or sulfonyl; A represents a single bond, lower alkylene or lower alkenylene; and n represents 0 or 1.
|
