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    • 16. 发明授权
    • Process for producing cyclic compound
    • 环状化合物的制备方法
    • US07038042B2
    • 2006-05-02
    • US11010215
    • 2004-12-10
    • Tomomi IkemotoTatsuya ItoKiminori Tomimatsu
    • Tomomi IkemotoTatsuya ItoKiminori Tomimatsu
    • C07D487/00C07C313/00
    • C07D225/06C07D313/08C07D313/20
    • A process suitable for safely mass-producing, through a short step, cyclic compounds useful in medicines, agricultural chemicals, foods, cosmetics, and chemical products or as intermediates therefor. The process, which is for producing a compound represented by the formula: {wherein Z represents an electron-attracting group; W represents optionally substituted ethylene or optionally substituted vinylene; R3 represents hydrogen or an optionally substituted hydrocarbon group; and X represents a divalent group [provided that when W represents optionally substituted vinylene, then —X—CH2-Z is not —X1—X2—CH2, -Z (wherein X1 represents sulfur or optionally substituted nitrogen and X2 represents optionally substituted ethylene)]} or a salt thereof, is characterized by subjecting a compound represented by the formula (II) or a salt thereof: (wherein the symbols have the same meanings as the above) to a ring closure reaction in a solvent containing a carbonic diester.
    • 一种适用于通过短步安全批量生产用于药物,农药,食品,化妆品和化学产品的环状化合物或其中间体的方法。 该方法用于制备由下式表示的化合物:其中Z表示吸电子基团; W表示任选取代的乙烯或任选取代的亚乙烯基; R 3表示氢或任选取代的烃基; 并且X表示二价基团[条件是当W表示任选取代的亚乙烯基时,则-X-CH 2 -Z不是-X 1 - 2 - -CH 2 - ,其中X 1表示硫或任选取代的氮,X 2表示任选取代的亚乙基)]} 或其盐的特征在于,在含有碳酸二酯的溶剂中使式(II)表示的化合物或其盐(其中符号具有与上述相同的含义)进行闭环反应。