发明名称 |
PROCESS FOR PRODUCING CYCLIC COMPOUND |
摘要 |
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 (I) or a salt thereof: {wherein Z represents an electron-attracting group; W represents optionally substituted ethylene or optionally substituted vinylene; R<3> 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 -X<1>-X<2>-CH2-Z (wherein X<1> represents sulfur or optionally substituted nitrogen and X<2> represents optionally substituted ethylene)]}, 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.
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申请公布号 |
WO0160768(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
WO2001JP01190 |
申请日期 |
2001.02.20 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD.;IKEMOTO, TOMOMI;ITO, TATSUYA;TOMIMATSU, KIMINORI |
发明人 |
IKEMOTO, TOMOMI;ITO, TATSUYA;TOMIMATSU, KIMINORI |
分类号 |
C07D225/06;C07D313/08;C07D313/20;(IPC1-7):C07B37/10 |
主分类号 |
C07D225/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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