专利号:US-4035405-A 优先权日:1976-07-09 标题 :Novel synthesis for preparing the hydrochloride salt of selected catecholamine derivatives 发明人:BODOR NICOLAE S; YUAN SUN-SHINE 权利人:INTERX RESEARCH CORP 摘要:Compounds of the formula: ##STR1## wherein R represents a straight or branched C 1 -C 5 alkyl group; and R 1 in each occurrence represents an acyl member which is alkanoyl having 1-22 carbon atoms, alkenoyl having one or two double bonds and having 4-22 carbon atoms, ##STR2## having a total of 4-10 carbon atoms of which 3-7 are ring carbon atoms in cycloalkyl and wherein n is zero, one, or two, phenoxyacetyl, naphthalenecarbonyl, pyridinecarbonyl, ##STR3## wherein n is zero, one or two and phenyl is unsubstituted or is substituted by 1-3 alkyl having 1-4 carbon atoms, alkoxy having 1-4 carbon atoms, halo, trifluoromethyl, dialkylamino having 2-8 carbon atoms, or alkanoylamino having 1-6 carbon atoms groups; are prepared in substantial purity and yield, using as the chloride ion donor, cesium chloride (CsCl). n The compounds prepared by the process claimed herein exhibit sympathomimetic activity and are thus useful in eliciting sympathomimetic responses in warm-blooded animals, e.g., reduction in intraocular pressure, miosis, mydriasis, bronchodilation, etc.
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专利号:JP-S60214765-A 优先权日:1976-07-09 标题 :Synthesis method of catecholamine derivative hydrochloride