Sharps Associates

Patricia Herlihy

Raj Kumar Razdan

Haldean Cloyce Dalzell

Benzopyrans of the formula ##STR1## wherein n represents 0 or 1, R is an alkyl group having 1 to 20 carbon atoms, an aryl-lower alkyl group or a cycloalkyl-lower alkyl group, R.sub.1 is hydrogen or ##STR2## wherein R.sub.4 is lower alkyl, phenyl, cycloalkyl-lower alkyl or aryl-lower alkyl, R.sub.2 is a lower alkyl and R.sub.3 is hydrogen or one or two lower alkyl groups, pharmaceutical compositions containing the compounds, and uses of the compounds as tranquilizers and analgesics.

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Dover, NH, United States of America

Patricia Herlihy