发明名称 |
Optically-active diamide derivatives. |
摘要 |
<p>A novel optically active diamide derivative represented by the following general formula is provided, which is useful as a starting material for asymmetric synthesis of optically active compounds.
<Chemistry id="chema01" num="0001"><Image id="ia01" he="28" wi="73" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein: R is an acyclic or cyclic, divalent atomic group containing at least one carbon atom which will, upon substitution of one of the heterocyclic groups in the formula with a nucleophilic reagent, stand as an asymmetric center in the substitution product; R<Sup>2</Sup> is a substituent which has such a configuration and a molecular size that the regioselectivity in the substitution reaction of the heterocyclic group with the nucleophilic reagent can be determined by a stereochemical interaction thereof with the substituent R<Sup>1</Sup>, the steric configuration of the two asymmetric carbon atoms to which the R<Sup>2</Sup> substituents are attached being identical; X is a sulfur atom or an oxygen atom; and n is an integer which is 1 or 2. Such a diamide derivative can be prepared by subjecting the corresponding dicarboxylic acid or an anhydride thereof with the corresponding heterocyclic compound to condensation reaction in the presence of a condensation agent.</p><p>The optically-active diamide derivative can be used in the reaction with a nucleophilic reagent to obtain an optically-active compound. The resulting compound can be further modified by subjecting it to reaction with other nucleophilic reagent or to hydrolysis.</p> |
申请公布号 |
EP0081817(A1) |
申请公布日期 |
1983.06.22 |
申请号 |
EP19820111421 |
申请日期 |
1982.12.09 |
申请人 |
YAMASA SHOYU KABUSHIKI KAISHA |
发明人 |
FUJITA, EIICHI;NAGAO, YOSHIMITSU;IKEDA, TAKAO 4-201, DAIGO ISHIDA DANCHI;INOUE, TAKEHISA |
分类号 |
C07D295/18;C07B31/00;C07B53/00;C07B61/00;C07C67/00;C07D263/16;C07D265/08;C07D277/16;C07D279/06;C07D283/02;C07D295/185;(IPC1-7):07D277/16;07D279/06;07D263/16;07D265/08 |
主分类号 |
C07D295/18 |
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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