| 摘要 |
Compounds of the formula <IMAGE> I <IMAGE> II in which A is lower alkyl, or a substituted or unsubstituted phenyl, thienyl, furyl, indolyl or thiaindolyl radical, R, X4 and X5 are hydrogen or lower alkyl, Y is hydrogen, hydroxy, etherified hydroxy, substituted amino, or N-attached heterocyclyl, X0 is O or OCH2CH2O, R' represents hydrogen, lower alkyl or acetyl; and acid-addition salts thereof, are novel and useful in pharmacy as hypolipaemiant, hypocholesterolaemiant and cholagogic agents or in the preparation of such agents.
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