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Crystal Structure of 3S-hydroxy-7 Melleine

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Chinese Journal of Chemical Physics 2006年第5期19卷 423-427页

作者： Xiao-hong Liu Fang Xu Yi Zhang Li-hong Liu Hua-rong Huang zhi-gang she Yong-cheng Lin Winglai Chanc Department of Applied Chemistry Sun Yat-sen University Guangzhou 510275 China School of Pharmaceutical Science Sun Yat-Sen University Guangzhou 510275 China Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis The Hong Kong Polytechnic University Hong Kong China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hong Kong China

A new compound, 3S-hydroxy-7 melleine was isolated from the endophytic fungus Xylariasp No.2508 from the mangrove tree on the South China Sea coast. It was the first time that this kind of compound was isolated from marine fungus. The structure was elucidated by NMR data, infrared spectrum （IR） and mass spectrometry （MS）. In addition, its structure was determined by the single-crystal X-ray diffraction analysis. It crystallized in monoclinic, space group P21 with a=10.8884（19） A, b=7.2284（13） A, c=13.398（2） A,β=104.217（3）°, C10H10O4·H2O, Mr=212.20, V=1022.2（3） A^3, Z=4, Dc=1.379 mg/m^3, F（000）=448, μ=0.112 mm^-1, the final R=0.0498, wR=0.101 for 2407 observed reflections （I〉2σ（I））. The molecular backbone of the compound includes a benzopyran ring. By comparing with the melting point and the optical rotation of the known 3R-hydroxy-7 melleine in literature, the absolute configuration of the compound was determined as 3S. It didn＇t exhibit antibacterial activity against Gram-positive bacterium Staphylococcus aureus at 200 μg/disk in the preliminary test.

关键词： 3S-hydroxy-7 melleine Isolation Crystal structure

THE　COLOUR　REACTION　OF　CADMIUM　WITH　1-(2-BENZOTIIIAZOLYL)-3-(4-PHENYLAZOPHENYL)-TRIAZENE　AND　ITS　APPLICATION

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Chinese Chemical Letters 1995年第9期6卷 787-788页

作者： Chu Ru GONG zhi gang she Hao Xing XU Bin XU(Department of Chemistry, Hubei Normal University,Huangshi 435002)

Abstract: A new triazene reagent 1-(2-benzothiazolyl)-3-(4-phenylazoghecyl )-triazece (BTPAPT) has been *** clour reaction of STPAPT with Cd (Ⅱ) has been studied. At pH=9～11,in the presence of Triton X-100,the reagent with Cd (Ⅱ) forms a complex with high sensitivity, the molar ratio of Cd (Ⅱ) to BTPAPT is 1: 2. The molar absarptlvity is 1. 4 × 10-5 L. mol-1. cm-1. Beer's law is obeyed for Cd (Ⅱ) in the range of 0-14 μg/25ml.

关键词： ITS TRIAZENE APPLICATION AND

Characterization of Gene Regulation of the Paraoxonase (PON) Family Members,PON2 and PON3

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Characterization of Gene Regulation of the Paraoxonase (PON)...

Synthesis of 1-(4-Antipyrinyl)-3-(3-Chlorophenyl)-Triazene and Its Colour Reaction with Mercury

第四届全国血脂分析与临床学术研讨会暨第九届全国脂蛋白学...

作者： De-Pei Liu Ai-Bing Wang Peng-Gao zhi-gang she

PON2 and PON3 are the members of the PON gene family and have antioxidant and antiatherogenic capaci- *** expression of PON2 and PON3 significantly reduces oxidant stress and atheroselerotic lesion for- mation,thus th...

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Chinese Chemical Letters 1997年第12期8卷 0-0页

作者： zhi gang she(Departmnt of Pharmacy, Guangdong College of Pharmacy, Guangzhou 510224)Cbu Ru GoNG Yi LUO Ming Hua YANG(Department of Chemistry Hubei Normal University, Huangshi 435002)

A uew diazoamino reagent 1-(4-antipyrinyl)-3-(3-Chlorophenyl)-triarene(APCPT)was synthesized. The colour reaction of APCPT with Hg(II) was studied. At pH=10,5~12.2, in the presence of Tween-80,APCPT reacts with Hg(II) to form a red complex witk higb *** molar ratio of Hg(II) to APCPT is 1:2. The molar absorptivity is 1.87 × 105L . mor． ***'s law is obeyed for Hg in the range of0-16μg/25ml

关键词： Ru Antipyrinyl Chlorophenyl Synthesis of 1 Triazene and Its Colour Reaction with Mercury

No significant association between dipeptidyl peptidase-4 inhibitors and adverse outcomes of COVID-19

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World Journal of Clinical Cases 2020年第22期8卷 5576-5588页

作者： Jiang-Hua Zhou Bin Wu Wen-Xin Wang Fang Lei Xu Cheng Juan-Juan Qin Jing-Jing Cai Xiao-Jing Zhang Feng Zhou Ye-Mao Liu Hao-Miao Li Li-Hua Zhu zhi-gang she Xin Zhang Juan Yang Hong-Liang Li Department of Cardiology Renmin Hospital of Wuhan UniversityBasic Medical SchoolWuhan UniversityWuhan 430071Hubei ProvinceChina Basic Medical School Institute of Model AnimalWuhan UniversityWuhan 430071Hubei ProvinceChina Department of Cardiology the 3rd Xiangya HospitalCentral South UniversityChangsha 410013Hunan ProvinceChina Medical Science Research Center Zhongnan Hospital of Wuhan UniversityInstitute of Model AnimalWuhan UniversityWuhan 430072Hubei ProvinceChina Department of Cardiology Renmin Hospital of Wuhan UniversityInstitute of Model Animal of Wuhan UniversityWuhan 430071Hubei ProvinceChina Institute of Model Animal Wuhan UniversityDepartment of GastroenterologyWuhan Third HospitalTongren Hospital of Wuhan UniversityWuhan 430072Hubei ProvinceChina

BACKGROUND Dipeptidyl peptidase-4(DPP4)is commonly targeted to achieve glycemic control and has potent anti-inflammatory and immunoregulatory *** structural analyses indicated a potential tight interaction between DPP4 and severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),raising a promising hypothesis that DPP4 inhibitor(DPP4i)drugs might be an optimal strategy for treating coronavirus disease 2019(COVID-19)among patients with ***,there has been no direct clinical evidence illuminating the associations between DPP4i use and COVID-19 *** To illuminate the associations between DPP4i usage and the adverse outcomes of *** We conducted a multicenter,retrospective analysis including 2563 patients with type 2 diabetes who were hospitalized due to COVID-19 at 16 hospitals in Hubei Province,*** excluding ineligible individuals,142 patients who received DPP4i drugs and 1115 patients who received non-DPP4i oral anti-diabetic drugs were included in the subsequent *** performed a strict propensity score matching(PSM)analysis where age,sex,comorbidities,number of oral hypoglycemic agents,heart rate,blood pressure,pulse oxygen saturation(SpO2)<95%,CT diagnosed bilateral lung lesions,laboratory indicators,and proportion of insulin usage were ***,111 participants treated with DPP4i drugs were successfully matched to 333 non-DPP4i ***,a linear logistic model and mixed-effect Cox model were applied to analyze the associations between inhospital DPP4i use and adverse outcomes of *** After rigorous matching and further adjustments for imbalanced variables in the linear logistic model and Cox adjusted model,we found that there was no significant association between in-hospital DPP4i use(DPP4i group)and 28-d allcause mortality(adjusted hazard ratio=0.44,95%CI:0.09-2.11,P=0.31).Likewise,the incidences and risks of secondary outcomes,including septic shock,acute respiratory distress synd

关键词： COVID-19 SARS-CoV-2 DPP4 inhibitors Diabetes Glucose control Adverse effects

具抗肿瘤活性的乙酰肝素酶抑制剂的研究与开发

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生命的化学 2008年第5期28卷 617-620页

作者：蔡小玲佘志刚林永成中山大学化学与化学工程学院广州510275

乙酰肝素酶是一种内源β-D-葡萄糖醛酸酶,通过抑制肝素酶的活性可抑制肿瘤细胞的生成及转移等。肝素酶抑制剂的研究,已成为抗肿瘤药物的研究热点之一。本文对肝素酶抑制剂作用的机理、筛选方法和已分离或合成的抑制剂等进行了综述,并讨... 详细信息

乙酰肝素酶是一种内源β-D-葡萄糖醛酸酶,通过抑制肝素酶的活性可抑制肿瘤细胞的生成及转移等。肝素酶抑制剂的研究,已成为抗肿瘤药物的研究热点之一。本文对肝素酶抑制剂作用的机理、筛选方法和已分离或合成的抑制剂等进行了综述,并讨论了今后对潜在的乙酰肝素酶抑制剂海洋生物羊栖菜多糖的开发。本文就DLC-1基因的结构及生物学功能、在乳腺癌中失活的机制和在乳腺癌中的表达及其意义作一综述。

关键词：肝素酶抑制剂羊栖菜多糖

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多值背景的属性约简及其上的函数依赖提取

山西大学学报(自然科学版) 2010年第2期33卷 190-193页

作者：孟志刚曲开社康向平山西大学计算机与信息技术学院

提出了一种多值背景的属性约简及其上的函数依赖提取算法.该算法分为两部分:(1)对属性进行约简,进而可以去掉一些不重要的属性;(2)将多值背景转换为单值背景,然后基于形式概念分析理论来获取原多值背景中的函数依赖.最后通过实例验证了... 详细信息

提出了一种多值背景的属性约简及其上的函数依赖提取算法.该算法分为两部分:(1)对属性进行约简,进而可以去掉一些不重要的属性;(2)将多值背景转换为单值背景,然后基于形式概念分析理论来获取原多值背景中的函数依赖.最后通过实例验证了该算法的有效性.

关键词：多值背景属性约简函数依赖

CoTCPP integrates with BiOBr microspheres for improved solar-driven CO_(2)reduction performance

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Green Energy & Environment 2025年第1期10卷 193-202页

作者： Lina Li Yi Zhang Gaopeng Liu Tiange Wei Junze Zhao Bin Wang Mengxia Ji Yuanbin she Jiexiang Xia Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu University301 Xuefu RoadZhenjiang212013China State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

CO_(2) photoreduction into carbon-based chemicals has been considered as an appropriate way to alleviate the energy issue and greenhouse ***,the 5,10,15,20-tetra(4-carboxyphenyl)porphyrin cobalt(II)(CoTCPP)has been integrated with BiOBr microspheres and formed the CoTCPP/BiOBr *** as-prepared CoTCPP/BiOBr-2 composite shows optimized photocatalytic performance for CO_(2) conversion into CO and CH_(4) upon irradiation with 300 W Xe lamp,which is 2.03 and 2.58 times compared to that of BiOBr,*** introduced CoTCPP significantly enhanced light absorption properties,promoted rapid separation of photogenerated carriers and boosted the chemisorption of CO_(2) *** metal Co^(2+) at the center of the porphyrin molecules also acts as adsorption center for CO_(2) molecules,accelerating the CO_(2) conversion into CO and *** possible mechanism of CO_(2) photoreduction was explored by in-situ FT-IR *** work offers a new possibility for the preparation of advanced photocatalysts.

关键词： BiOBr CoTCPP CO_(2)photoreduction Carriers transfer CO_(2)adsorption-activation

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日光温室西葫芦丰产栽培技术

中国果菜 2009年第6期29卷 14-14页

作者：佘志刚晋中市榆次区修文镇农业办

1、品种选择选择优良品种。如：冬玉、早青一代等。2、种子处理将种子用清水湿选，剔除浮于水面上的未熟种子。再将种子放于55℃水中，并不断地搅拌。至水温降到30℃，继续泡4小时，然后边搓洗、边用清水冲洗种子上的粘液，沥水后用湿... 详细信息

1、品种选择选择优良品种。如：冬玉、早青一代等。2、种子处理将种子用清水湿选，剔除浮于水面上的未熟种子。再将种子放于55℃水中，并不断地搅拌。至水温降到30℃，继续泡4小时，然后边搓洗、边用清水冲洗种子上的粘液，沥水后用湿布包好，放在25—30℃温度下催芽，每天用清水冲洗一次，待50％的种子露白后，即可播种。

关键词：丰产栽培技术日光温室西葫芦种子处理清水冲洗品种选择优良品种催芽