1,2,3,4-Tetrahydrocyclopenta[c] [1]benzopyrans of the formulae ##SPC1## Wherein R is a lower alkyl group having 1 to 5 carbons, R.sub.1 is hydrogen or a lower alkyl group having 1 to 5 carbons, R.sub.2 is a lower alkyl group and R.sub.3 is an alkyl group having 1 to 20 carbon atoms, a phenyl-lower alkyl group or a cycloalkyl-lower alkyl group. The compounds have anti-hypertensive, antidepressant, analgesic, anticonvulsant, anti-anxiety and tranquilizing activity in animals.
1,2,3,4-四氢环戊[c][1]苯并
吡喃的
化学式为##
SPC1##其中R是具有1至5个碳的较低烷基基团,R.sub.1是氢或具有1至5个碳的较低烷基基团,R.sub.2是较低烷基基团,R.sub.3是具有1至20个碳原子的烷基基团,苯基-较低烷基基团或环烷基-较低烷基基团。这些化合物在动物中具有抗高血压、抗抑郁、镇痛、抗抽搐、抗焦虑和镇静活性。