申请人:Pfizer Inc.
公开号:US04723010A1
公开(公告)日:1988-02-02
Chloromethyl group substituted heterocyclic compounds of the formulae ##STR1## wherein X is O or S; Y together with the two carbons to which Y is attached forms phenyl, pyridyl or pyrimidyl, each of which may be substituted by R; R is one of iodo or trifluoromethylthio or one or two of fluoro, chloro, bromo, (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, (C.sub.1 -C.sub.4)alkylthio, (C.sub.1 -C.sub.4)alkylsulfinyl, (C.sub.1 -C.sub.4)alkylsulfonyl or trifluoromethyl; and R.sup.1 is hydrogen or R, are prepared by reacting a bifunctional compound of the formulae ##STR2## with a 2-chloro-1,1,1-tri(C.sub.1 -C.sub.6)alkoxyethane. Most of the compounds of formulae I and II are novel. These compounds are intermediates of use in the preparation of compounds having pharmaceutical activity. The 2-chloro-1,1,1-tri(C.sub.1 -C.sub.6)alkoxyethanes are prepared from the corresponding tri(C.sub.1 -C.sub.6)alkoxyethanes by chlorination with N-chlorosuccinimide or with chlorine in pyridine and a chlorohydrocarbon cosolvent.
公式为##STR1##的氯甲基取代的杂环化合物,其中X为O或S;Y与Y连接的两个碳原子一起形成苯基、吡啶基或嘧啶基,每个基可能被R取代;R为碘或三氟甲硫基中的一个,或者是氟、氯、溴、(C.sub.1 -C.sub.4)烷基、(C.sub.1 -C.sub.4)烷氧基、(C.sub.1 -C.sub.4)烷硫基、(C.sub.1 -C.sub.4)烷基亚硫酰基、(C.sub.1 -C.sub.4)烷基磺酰基或三氟甲基中的一个或两个;R.sup.1为氢或R,通过将公式为##STR2##的双官能团化合物与2-氯-1,1,1-三(C.sub.1 -C.sub.6)烷氧基乙烷反应制备。大多数公式I和II的化合物是新颖的。这些化合物是制备具有药用活性化合物的中间体。2-氯-1,1,1-三(C.sub.1 -C.sub.6)烷氧基乙烷是通过将相应的三(C.sub.1 -C.sub.6)烷氧基乙烷与N-氯琥珀酰亚胺或在吡啶和氯气中以及氯氢烃共溶剂中氯化而制备的。