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乌梅中生物碱的分离与鉴定 被引量:19
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作者 任少红 付丽娜 +1 位作者 王红 肖朝萍 《中药材》 CAS CSCD 北大核心 2004年第12期917-918,共2页
乌梅经 80 %乙醇浸提后用氯仿萃取浓缩 ,转入水相通过大孔阳离子交换树脂柱 ,洗脱液用氯仿萃取浓缩后 ,石油醚溶解进行重结晶 ,升华提纯 ,IR、MS、1HNMR、13 CNMR鉴定化合物的结构。从中分离并鉴定了 2个生物碱为 :2 ,2 ,6 ,6 四甲基... 乌梅经 80 %乙醇浸提后用氯仿萃取浓缩 ,转入水相通过大孔阳离子交换树脂柱 ,洗脱液用氯仿萃取浓缩后 ,石油醚溶解进行重结晶 ,升华提纯 ,IR、MS、1HNMR、13 CNMR鉴定化合物的结构。从中分离并鉴定了 2个生物碱为 :2 ,2 ,6 ,6 四甲基哌啶酮 (Ⅰ ) ,叔丁基脲 (Ⅱ )。化合物Ⅰ。 展开更多
关键词 乌梅 生物碱 鉴定 MS 洗脱液 IR 新发现 浓缩 甲基 哌啶酮
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Synthesis, Crystal Structure and Inhibition of the K562 Cell Proliferation of N'-Tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea
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作者 薛思佳 蔡志娟 +1 位作者 王庆东 申杰峰 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第4期462-466,共5页
The title compound N'-tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea has been synthesized for the first time. Complete assignments were achieved by IR, ^1H NHR and single-crystal X-ray diffraction analyses. ... The title compound N'-tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea has been synthesized for the first time. Complete assignments were achieved by IR, ^1H NHR and single-crystal X-ray diffraction analyses. The inhibitory rate of the cellular growth of K562 cells (chronic myeloid leukemic cells) was measured using MTT [3-(4,5-dimethylthiazo-2-yl)-2,5-diphenyltetra-zolium bromide] assay. The cell apoptosis was assessed by agarose gel electrophoresis to find that the title compound has antiproliferation and apoptosis inducing effects on K562 cells. In order to investigate the relationship between structure and activity of the target compound, we report its crystal structure and biological behavior in the present paper. Crystallographic data: C14H18^- CIN3O3S, Mr = 343.82, orthorhombic, space group Pnma, a = 19.786(6), b = 6.789(2), c = 12.938(4) A, V = 1738.0(9)A^3, Z = 4, Dc = 1.314 g/cm^3, F(000) = 720μ(MoKa) = 0.354 mm^-1, R = 0.0378 and wR = 0.0941. The molecule is a planar structure. 展开更多
关键词 crystal structure 2-chlorophenoxyacetyl thiourea tert-butylurea MTT assa K562
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