发明授权
US4550115A Certain piperidino-lower-alkylene esters of 3-methylflavone-8-carboxylates possessing smooth muscle relaxant activity 失效
3-甲基黄酮-8-羧酸酯的某些哌啶子基 - 低级亚烷基酯具有平滑肌松弛剂活性

Certain piperidino-lower-alkylene esters of
3-methylflavone-8-carboxylates possessing smooth muscle relaxant
activity
摘要:
Novel 3-methylflavone-8-carboxylates having the structural formula (I): ##STR1## wherein Z is N-methylpiperidinyl, tropinyl or quinuclidinyl, or a group having the structural formula (II): ##STR2## in which n is 0 or 1, R is hydrogen or alkyl having from 1 to 4 carbon atoms, or phenyl, R.sub.1 is hydrogen or alkyl having from 1 to 4 carbon atoms, R.sub.2 is hydrogen or hydroxy, and further wherein R, R.sub.1 and R.sub.2 may together form, with the carbon atoms from which they depend, a cycloalkyl ring having from 4 to 6 carbon atoms, and R.sub.3 is hydrogen or alkyl having from 1 to 4 carbon atoms, with the proviso that R, R.sub.1, R.sub.2 and R.sub.3 cannot at the same time all be hydrogen, and the pharmaceutically acceptable salts thereof, are effective smooth muscle relaxants, calcium blockers, anaesthetics and anti-inflammatories.
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