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US5013756A Catechol derivatives, a process of preparation thereof, and therapeutical compositions containing the same 失效
儿茶酚衍生物,其制备方法和含有它们的治疗组合物

Catechol derivatives, a process of preparation thereof, and
therapeutical compositions containing the same
摘要:
This invention relates to catechol derivatives having the general formula ##STR1## wherein R represents various substituents, to a process for the preparation of the same comprising reacting S-(3,4-dihydroxyphenyl)-isothiourea, which has the formula II, with a tosylate of the general formula III ##STR2## and to therapeutical compositions wherein the active ingredient is one of these compounds.
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