金鸡纳碱类衍生物广泛应用于有机小分子催化。本文采用Mitsunobu反应和磺酰基异氰酸酯的胺解,合成了4种金鸡纳碱-磺酰脲类催化剂(3a^3d),其结构经1 H NMR,13 C NMR,IR和HR-MS(ESI)表征。在优化反应条件下,3a催化硝基甲烷与查尔酮间的不...金鸡纳碱类衍生物广泛应用于有机小分子催化。本文采用Mitsunobu反应和磺酰基异氰酸酯的胺解,合成了4种金鸡纳碱-磺酰脲类催化剂(3a^3d),其结构经1 H NMR,13 C NMR,IR和HR-MS(ESI)表征。在优化反应条件下,3a催化硝基甲烷与查尔酮间的不对称Michael加成反应,收率71%和33%ee。展开更多
A series of new aurone derivatives was prepared by means of a practical route and their anti-vascular smooth muscle cells（VSMC） vegetation activities were evaluated by the 3-（4,5-dimethylthlazol-2-yl）-2,5- dipheny...A series of new aurone derivatives was prepared by means of a practical route and their anti-vascular smooth muscle cells（VSMC） vegetation activities were evaluated by the 3-（4,5-dimethylthlazol-2-yl）-2,5- diphenyltetrazolium bromide（MTT） method with tetrandrine as a positive contrast drug. The structures of the com- pounds were confirmed by 1H NMR, 13C NMR and electrospray ionization mass spectrometry（ESI-MS）. Several new compounds exhibited promising activity against VSMC proliferation and the preliminary structure-activity relation- ships（SAR） were discussed in order to investigate the essential structures required for their bioactivities.展开更多
文摘金鸡纳碱类衍生物广泛应用于有机小分子催化。本文采用Mitsunobu反应和磺酰基异氰酸酯的胺解,合成了4种金鸡纳碱-磺酰脲类催化剂(3a^3d),其结构经1 H NMR,13 C NMR,IR和HR-MS(ESI)表征。在优化反应条件下,3a催化硝基甲烷与查尔酮间的不对称Michael加成反应,收率71%和33%ee。
基金Supported by the National Natural Science Foundation of China(No.81172938)the Program for the Top Science and Technology Innovation Teams of Higher Learning Institutions of Shanxi Province,China+1 种基金the Shanxi Foundation for Overseas Returned,China(No.2008-51)the Program for the Top Young and Middle-aged Innovative Talents of Higher Learning Institutions of Shanxi Province,China
文摘A series of new aurone derivatives was prepared by means of a practical route and their anti-vascular smooth muscle cells（VSMC） vegetation activities were evaluated by the 3-（4,5-dimethylthlazol-2-yl）-2,5- diphenyltetrazolium bromide（MTT） method with tetrandrine as a positive contrast drug. The structures of the com- pounds were confirmed by 1H NMR, 13C NMR and electrospray ionization mass spectrometry（ESI-MS）. Several new compounds exhibited promising activity against VSMC proliferation and the preliminary structure-activity relation- ships（SAR） were discussed in order to investigate the essential structures required for their bioactivities.
