您当前所在位置: 首页 > 学者
在线提示

恭喜!关注成功

在线提示

确认取消关注该学者?

邀请同行关闭

只需输入对方姓名和电子邮箱,就可以邀请你的同行加入中国科技论文在线。

真实姓名:

电子邮件:

尊敬的

我诚挚的邀请你加入中国科技论文在线,点击

链接,进入网站进行注册。

添加个性化留言

已为您找到该学者10条结果 成果回收站

上传时间

2009年08月17日

【期刊论文】Crystallographic and NMR studies of antiinfective tricyclic guanidine alkaloids from the sponge Monanchora unguifera

华会明, Hui-ming Hua, a, c Jiangnan Peng, a Frank R. Fronczek, d Michelle Kellye, Mark T. Hamanna, b, *

Bioorganic & Medicinal Chemistry 12(2004)6461-6464,-0001,():

-1年11月30日

摘要

Three tricyclic guanidine alkaloids, including 1, 8a;8b, 3a-didehydro-8b-hydroxyptilocaulin (1), 1, 8a;8b, 3a-didehydro-8a-hydroxyptilocaulin(2) and mirabilin B (3), were identified from the marine sponge Monanchora unguifera.1, 8a;8b, 3a-Didehydro-8a-hydroxyptilocaulin(2) is a new stereoisomer of 1, the structure of which was elucidated by spectroscopic analysis, comparison of its spectral data with those of 1, and confirmed by X-ray analysis.Compounds 1 and 2 co-crystallized in an unusual perfect order and packed around an approximate inversion center. A mixture of 1 and 2 is active against the malaria parasite Plasmodium falciparum with an IC50 value of 3.8μg/mL while mirabilin B (3) exhibited antifungal activity against Cryptococcus neoformans with an IC50 value of 7.0μg/mL and antiprotozoal activity against Leishmania donovani with an IC50 value of 17μg/mL.

Tricyclic guanidine alkaloids, Monanchora unguifera, Sponge, X-ray crystallography, Antimalarial, Antifungal.,

上传时间

2009年08月17日

【期刊论文】Two New Sesquiterpene Lactones with the Sulfonic Acid Group from Saussurea lappa

华会明, Hong-quan YIN, a Hong-wei FU, a Hui-ming HUA, a Xiu-lan QI, b Wen LI, c Yi SHA, c and Yue-hu PEI*, a

Chem.Pharm.Bull. 53 (7) 841-842 (2005),-0001,():

-1年11月30日

摘要

Two new sesquiterpene lactones with the unusual sulfonic acid group, 13-sulfo-dihydrosantamarine (1)and 13-sulfo-dihydroreynosin (2), have been isolated from the roots of Saussurea lappa C.Their structures, including the absolute configurations, were elucidated by spectroscopic methods.

Saussurea lappa C, Compositae, sesquiterpene lactone, 13-sulfo-dihydrosantamarine, 13-sulfo-dihydroreynosin

上传时间

2009年08月17日

【期刊论文】Three New Cytotoxic Cyclic Acylpeptides from Marine Bacillus sp.

华会明, Hai Long ZHANG, Hui Ming HUA, Yue Hu PEI, * Xin Sheng YAO

Chem. Pharm. Bull. 52 (8) 1029-1030 (2004),-0001,():

-1年11月30日

摘要

Three new cytotoxic cyclopeptides belonging to iturin class have been isolated from marine bacterium Bacillus sp.These three compounds have the cytotoxic activities.Their structures were determined based on chemical analysis and all kinds of spectroscopic techniques.

Bacillus sp., , cyclopeptide, cytotoxic activity

上传时间

2009年08月17日

【期刊论文】三棱的化学成分研究(I)

华会明, 袁涛, 斐月湖

中草药 Chinese Traditional and Herbal Drugs, 2005, 36 (11): 1607~1610,-0001,():

-1年11月30日

摘要

目的 研究黑三棱 Sparganium stoloniferum的化学成分。方法 用硅胶、Sephadex LH-20往色谱等方法进行分离纯化,通过理化性质及光谱数据结合化学反应确定化合物的结构。结果 分离得到9个化合物,分别鉴定为胡萝卜苷棕榈酸酯(I)、β-谷甾醇棕榈酸酯(Ⅱ),24一亚甲基环阿尔廷醇(Ⅲ),6,7,10-三羚基-8-十八烯酸(Ⅳ),香草酸(Ⅴ)、对羟基苯甲醛(Ⅵ),a-棕榈酸单甘油酯(Ⅶ),5-羟甲基糠醛(Ⅷ),β-谷甾醇(Ⅸ),结论 化合物Ⅰ~Ⅲ和Ⅴ~Ⅷ 均为首次从该属植物中分离得到。

黑三棱, 胡萝卜苷棕榈酸酯, β-谷甾醇棕榈酸酯

上传时间

2009年08月17日

【期刊论文】A New Biflavonoid from Stellera chamaejasme L.

华会明, Bao Min FENG*, Yue Hu PEI, Hui Ming HUA

Chinese Chemical Letters Vol. 15, No.1, pp 61-62, 2004,-0001,():

-1年11月30日

摘要

A new biflavonoid, stelleranol, was isolated from the roots of Stellera chamaejasme L..Its structure was determined by the analysis of MS and NMR data, especially 2D NMR spectra.

Stellera chamaejasme L., , flavonoids, biflavonoids

合作学者

  • 华会明 邀请

    沈阳药科大学,辽宁

    尚未开通主页