发明授权
US5043354A Pharmaceutically useful 5-hydroxy-2,3-dihydro-benzofurans and 5-hydroxy-benzofurans 失效
药用有用的5-羟基-2,3-二氢 - 苯并呋喃和5-羟基 - 苯并呋喃

Pharmaceutically useful 5-hydroxy-2,3-dihydro-benzofurans and
5-hydroxy-benzofurans
摘要:
A compound of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each lower alkyl, R.sup.4 is hydrogen or hydroxy, and a heavy solid line means a double bond when R.sup.4 is hydrogen and a single bond when R.sup.4 is hydroxy is useful in the treatment of diseases caused by reactive oxygen species and organic radicals.
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