Sydnonimine N-acyl derivatives and method for preparing same
    4.
    发明授权
    Sydnonimine N-acyl derivatives and method for preparing same 失效
    西尼尼因N-酰基衍生物及其制备方法

    公开(公告)号:US4245100A

    公开(公告)日:1981-01-13

    申请号:US855246

    申请日:1977-11-28

    IPC分类号: C07D271/04 A61K31/42

    CPC分类号: C07D271/04

    摘要: N-acyl sydnonimines of the formula: ##STR1## wherein R is phenyl, .beta.-phenylethyl, dl-.alpha.-methyl-.beta.-phenylethyl or l-.alpha.-methyl-.beta.-phenylethyl; R' is hydrogen, phenyl; X is a lower alkyl, phenyl, ##STR2## wherein R" is hydrogen, a halogen, a lower fluorinated alkyl; R'" is hydrogen, a halogen, a lower alkyl; when R is dl-.alpha.-methyl-.beta.-phenylethyl, R' is H, R" is Cl, R'" is only Cl, while when R' is H, X is NHC.sub.6 H.sub.5 R is only l-.alpha.-methyl-.beta.-phenylethyl; when X is phenyl, R and R' are each phenyl only.The method for preparing sydnonimine N-acylderivatives comprises reacting N-nitrosoderivatives of N-substituted nitriles of .alpha.-aminoacids of the formula: ##STR3## wherein R is phenyl, .beta.-phenylethyl, di-.alpha.-methyl-.beta.-phenylethyl or l-.alpha.-methyl-.beta.-phenylethyl; R' is H, phenyl; when R' is phenyl R is phenyl only, with an acylation agent in a solvent medium in the presence of a basic-character catalyst, followed by isolation of the desired product.

    摘要翻译: 其中R为苯基,β-苯乙基,dl-α-甲基-β-苯乙基或1-α-甲基-β-苯基乙基的N-酰基次磺酰亚胺:其中R为苯基, R'是氢,苯基; X是低级烷基,苯基,其中R“是氢,卤素,低级氟化烷基; R“'是氢,卤素,低级烷基; 当R是dl-α-甲基-β-苯基乙基时,R'是H,R“是Cl,R”'仅为Cl,而当R'是H时,X是NHC 6 H 5 R只是1-α-甲基 β-苯乙基; 当X是苯基时,R和R'各自为苯基。 制备sydnonimine N-酰基衍生物的方法包括使下式的α-氨基酸的N-取代腈的N-亚硝基衍生物:其中R是苯基,β-苯乙基,二 - α-甲基-β-苯乙基或1- α-甲基-β-苯乙基; R'是H,苯基; 当R'是苯基时,R仅为苯基,与酰基化剂在溶剂介质中,在碱性字符催化剂存在下,然后分离所需产物。