Novel synthesis for preparing the hydrochloride salt of selected
catecholamine derivatives
    50.
    发明授权
    Novel synthesis for preparing the hydrochloride salt of selected catecholamine derivatives 失效
    用于制备选择的儿茶酚胺衍生物的盐酸盐的新型合成

    公开(公告)号:US4035405A

    公开(公告)日:1977-07-12

    申请号:US703943

    申请日:1976-07-09

    CPC分类号: C07C323/20

    摘要: Compounds of the formula: ##STR1## wherein R represents a straight or branched C.sub.1 -C.sub.5 alkyl group; and R.sub.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).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.

    摘要翻译: 下式的化合物:其中R表示直链或支链的C 1 -C 5烷基; 并且R 1在每次出现时表示具有1-22个碳原子的烷酰基的酰基,具有一个或两个双键并且具有4-22个碳原子的烯酰基,其总共具有4-10个碳原子的“IMAGE” 7是环烷基中的环碳原子,其中n是0,1或2,苯氧基乙酰基,萘羰基,吡啶羰基,其中n是0,1或2,苯基是未取代的或被1-3个具有1- 4个碳原子,具有1-4个碳原子的烷氧基,卤素,三氟甲基,2-8个碳原子的二烷基氨基或具有1-6个碳原子的烷酰氨基; 以氯离子供体氯化铯(CsCl)的形式用大量纯度和收率制备。