发明授权
US3985889A Method of tranquilizing and treating pain 失效
镇静和治疗疼痛的方法

Method of tranquilizing and treating pain
摘要:
Novel substituted 1,3-dihydrospiro[isobenzofuran]s and methods of preparing the same are described. These compounds are useful as tranquilizers, analgetic agents and intermediates therefor.
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