TETRAHYDROBENZO(B,D)PYRAN DERIVATIVES

摘要

Dibenzopyran derivatives which possess antihypoxia activity are 7,8,9,10-tetrahydro-6H-dibenzo [b,d] pyranyloxyaminopropanols having the general formula: CHEM where X is oxygen or dialkyl in which each alkyl group contains one to seven carbons; R is hydrogen or alkyl containing one to seven carbons and A is primary, secondary or tertiary amino. Also included are pharmaceutically acceptable acid addition salts of these compounds.