发明授权
US5691340A Benzopyran derivatives 失效
苯并吡喃衍生物

Benzopyran derivatives
摘要:
A compound selected from those of formula (I): ##STR1## where RA, RB, RC, RD, A, n, X, Y and Ar are defined in the description, and a medicinal product comprising the same for treating a mammal afflicted with a disease associated with sigma receptors.
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