三羟基的

Methyl 3,6,8-trihydroxy-7-methoxy-1-methylanthraquinone-2-carboxylate is a new COX-2 selective inhibitor isolated from Gladiolus gandavensis.

1-甲基-2-甲氧羰基-3， 6， 8-三羟基-7-甲氧基蒽醌是从唐菖蒲干球茎中分离到的具有环氧化酶-2选择性抑制活性的多取代蒽醌类化合物。

Are there any similar effects of stilbene derivatives on animals as they do on plants? In the present work, the chemical modification of resveratrol is investigated in detail. Furthermore, virtual screening, bioactivity evaluation and structure-activity relationship analysis are done on the designed molecules.

本论文力图探讨茋类化合物是否对动物体具有类似其在植物体中的免疫功能，以代表性的天然茋类化合物白藜芦醇(Resveratrol，3，5，4\'-三羟基-反-1，2二苯乙烯)为研究出发点，进行分子设计、虚拟筛选、活性评价和构效关系分析。

Some preparation methods of galanthanime including extraction and organic synthesis were summarized, such as extraction from narcissus, galanthus woronawii losink, and lycoris radiate and countereurrent chromatography refining, and enzymatic extraction from hyacinths orientalis, as well as the organic synthesis using 3,4-dimethoxybenzaldehyde, methyl 3,4,5-trihydroxybenzoate, isovanilin and tyramine as raw material.

概述了加兰他敏从黄水仙、沃氏雪花莲中提取、石蒜中提取及逆流色谱法精制、喇叭水仙酶法中提取的方法、工艺；以3，4-二甲氧基苯甲醛、3，4，5-三羟基苯甲酸甲酯和异香草醛和酪胺为起始原料合成加兰他敏的方法。

ABSTRACT To study the antibacterial constituents from the fermentation broth of endophytic fungus Penicillium sp. 0935030 from mangrove plant Acrostichum aureurm. The separation procedure was guided by antibacterial bioassay. Seven compounds were isolated and purified by column chromatography, and their structures were identified as cyclo (1), cyclo (2), 1(2Furanyl)1,2ethanediol (3),(3β,4β,22β)olean12ene3,22,23triol (4), mannitol (5), uridine (6), and liquiritigenin (7) by physicochemical and spectral data.

为研究红树林植物卤蕨内生真菌Penicillium sp.0935030发酵物中的抗菌活性成分，采用活性追踪的方法，用多种色谱技术对化合物进行分离纯化，通过理化性质和光谱数据鉴定出7个化合物，分别为：环(1)，环(2)，1呋喃基1，2乙二醇(3)，(3β，4β，22β)12烯3，22，23三羟基齐墩果烷(4)，甘露醇(5)，尿苷(6)和甘草素(7)。

IR spectra and UV spectra of the complexes are described. The results show that two phenolic oxygen and two imino nitrogen atoms in H2L coordinate to M ions.

通过对配合物的红外光谱和紫外光谱测定与归属，推测在三个过渡金属Schiff碱配合物中配体是通过酚羟基的氧原子和亚氨基的氮原子进行配位的。

A method for the micro determination of germanium by flow injection－spectrophotometry with CCD diode array detector is reported, based on the color reaction between germanium and salicyl fluorone in the presence of cetyl trimethyl ammonium bromide. A good linear relationship was obtained in the range of 0～3.0 mg/L for germanium.

研究了在溴化十六烷基三甲铵存在下，锗与2，3，7－三羟基－9－水杨基荧光酮－6的显色反应，采用二极管阵列检测器，建立了检测微量锗的流动注射分光光度法。

The sinapate esters have greater UV-B attenuation and antioxidant activity than flavonoids.

拟南芥苗中还含有高浓度的黄酮和较高比例的五羟黄酮及4，5，7-三羟基黄酮衍生物。

Methods:Dehydration of D-mannitol,followed by a reaction sequence of selective protection,benzylation,deprotection,tritylation,benzylation and removal of the trityl group,afforded the title compound.

以D-甘露醇为原料构建2，5-脱水-3，4，6-O-三苄基-D-葡萄糖醇的手性分子骨架，通过选择性地对多羟基的保护和脱保护达到对产物分离的目的。

Two approaches for the asymmetric syntheses of naturally occuring eudesmane-type triol kudtriol and 5-epi-kudtriol as well as their C-11 epimers were achieved starting from-dihydrocarvone through six and seven steps, respectively.

以-二氢香芹酮为原料，用两条合成路线分别经六、七步反应完成了三羟基桉烷类天然产物Kudtriol、5-epi-Kudtriol及它们的C-11位差向异构体的不对称全合成。

The simple and fast determination method presented is based on initial chelation of Sn4+, Cu2+, Pb2+ and other metal ions with EDTA and its subsequent decomposition with trihydroxybenzoic acid, mercaptosuccinic acid and dithiocarbamic propanoic acid.

本文提出的简易、快速测定方法是用EDTA螯合锡、铜、铅和其它金属离子，然后分别用三羟基甲酸、巯基丁二酸和氨荒丙酸解蔽。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新