申请人:Kuraray Co., Ltd.
公开号:US06111111A1
公开(公告)日:2000-08-29
A pyridine alcohol derivative represented by General Formula III ##STR1## (where A represents a divalent organic group which may contain one to three oxygen atoms, nitrogen atoms and/or sulfur atoms, wherein A may form a 5-, 6-, 7-, or 8-membered ring together with two bonded carbon atoms, where said ring may form a condensed ring with one or more additional rings; R.sup.5 represents a hydrogen atom, --CHR.sup.1 R.sup.2, or an alkenyl group, an aryl group or an aralkyl group which may be substituted; R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a hydrocarbon group which may be substituted; and R.sup.6 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group which may be substituted), is produced by: reacting a pyridine ester derivative represented by General Formula I-1 ##STR2## (where Z.sup.1 represents --COX; X represents an alkoxyl group, an alkenyloxy group, an aryloxy group or an aralkyloxy group which may be substituted; and A is the same as above) with a reducing agent, an alkylating agent, an alkenylating agent, an arylating agent or an aralkylating agent to obtain a pyridine carbonyl derivative represented by General Formula II ##STR3## (where A and R.sup.5 are the same as above); and reacting the resulting pyridine carbonyl derivative with a reducing agent, an alkylating agent, an alkenylating agent, an arylating agent or an aralkylating agent to obtain the pyridine alcohol derivative of the General Formula III.
通用公式III所代表的吡啶醇衍生物是通过以下步骤制备的:将通用公式I-1所代表的吡啶酯衍生物与还原剂、烷基化剂、烯基化剂、芳基化剂或芳基烷基化剂反应,得到通用公式II所代表的吡啶羰基衍生物;然后将所得的吡啶羰基衍生物与还原剂、烷基化剂、烯基化剂、芳基化剂或芳基烷基化剂反应,得到通用公式III所示的吡啶醇衍生物。