混合三烃基锡衍生物的研究（Ⅱ）—一丁基二环己基锡羧酸…

合成了２１个混合三烃基锡羧酸酯。利用红外光谱、核磁共振谱（＾１Ｈ，＾１３Ｃ，＾１１９Ｓｎ）和质谱表征了化合物的结构。对取代苯甲酸酯化合物，锡原子的化学位移δ（＾１１９Ｓｎ）与苯环上取代基的Ｈａｍｍｅｔｔ常数有很好的线性关系。化合物的生物活性测定结果表明，它们具有高效杀螨活性。     

三苯基锡N—亚水杨基氨基酸酯的合成及表征

合成了７种三苯基锡Ｎ－亚水杨基氨基酸酯，通过元素分析、ＩＲ、ＵＶ、＾１Ｈ ＮＭＲ和＾１３Ｃ ＮＭＲ测定，对其结构进行了表征。结果表明，合成的化合物具有醇亚胺和酮胺互变异构体结构，锡原子是五配位的，存在着分子间酚羟基（酮羰基）氧原子同锡原子的配键。测定了具有光学活性化合物的比旋光度。     

1—酰氧（胺）—2,8,9—三氧杂—5—氮杂—1—锡杂三环（3.3.3.0^1. …

合成了１４个新化合物，１－酰氧（胺）基－２，８，９－三氧杂－５－氮杂－１－锡杂三环（３．３．３．０＾１．５）十一烷，由ＩＲ，＾１ＨＮＭＲ，＾１３ＣＮＭＲ和＾１１９ＳｎＮＭＲ及元素分析确定其结构，该类化合物在ＣＤＣｌ３中可能形成六配位化合物，而在ＤＭＳＯ中，溶剂分子参与Ｓｎ原子配位，聚合体解聚为六配位化合物。     

具有生物活性有机硅化合笺的研究（Ⅵ）：含硅四配位双（单）硫…

共合成了１３个含硅四配位二硫代磷酸酯和２个含硅四配位单硫代磷酸酯的新化合物，经元素分析，ＩＲ，＾１ＨＮＭＲ，ＭＳ确定了新化合物结构。对部分化合物进行了生物活性的测定，结果表明个别化合物有较好的生物活性。     

二氯马来酰亚胺有机锡化合物的合成和结构表征

合成了１４个１－三羟锡基－３，４－二氯马来酰亚胺有机锡化合物，研究了它们的核磁共振谱（＾１Ｈ，＾１３Ｃ，＾１１９Ｓｎ），外光谱质谱，并且得出，锡原子上的烃基对化合物的生物活性有很大的影响。     

2—羟基—1—萘醛缩苯胺类Schiff碱化合物结构的研究

合成了９个２－羟基－１－萘醛缩苯胺类Ｓｃｈｉｆｆ碱化合物，通过ＩＲ、＾１ＨＮＭＲ和＾１３ＣＮＭＲ测定，对其波谱进行了研究。在＾１ＨＮＭＲ谱中，得出酚羟基质子的化学位移值与苯环上的间位和对位取代基的Ｈａｍｍｅｔｔ常数有很好的线性关系：δ＝１４．９６－２．２６σ，ｒ＝０．９７，ｎ＝８。证明了此类Ｓｃｈｉｆｆ碱化合物的结构为烯醇亚胺结构。     

三苯基锡N-亚水杨基氨基酸酯的合成及表征

合成了７种三苯基锡Ｎ－亚水杨基氨基酸酯，通过元素分析、ＩＲ、ＵＶ、１ＨＮＭＲ和１３ＣＮＭＲ测定，对其结构进行了表征。结果表明，合成的化合物具有醇亚胺和酮胺互变异构体结构，锡原子是五配位的，存在着分子间酚羟基（酮羰基）氧原子同锡原子的配键。测定了具有光学活性化合物的比旋光度。     

2,2‘—二（对胺苯甲酯）—1,1’联萘瓣核磁共振谱解析

利用ＨＮＭＲ，＾１３ＣＮＭＲ谱研究了２，２‘－二（对胺苯甲酯）－１，１‘联萘瓣结构，并通过Ｈ＾１－ＨＣＯＳＹ，＾１３Ｃ－Ｈ异核相关及＾１３Ｃ－Ｈ异核远程相关谱进一步地确定了其Ｈ谱和＾１３Ｃ谱中各谱峰的归属，为同类化合物的表征提供了一个依据。’     

聚芳醚酮大环化合物的核磁共振谱解析

利用一维ＮＭＲ方法研究了新型聚芳醚酮大环化合物的影响，用二维同核＾１Ｈ－＾１Ｈ ＣＯＳＹ和＾１３Ｃ－＾１Ｈ ＣＯＳＹ实验方法以及类似物质标准谱图的比较，对一维ＮＭＲ谱峰进行了归属。     

一类新型酰基脲化合物的设计,合成及生物活性

设计并合成了２１个新型含呋喃环的双酰基脲化合物，经ＩＲ，＾１ＨＮＭＲ、ＭＳ和元素分析确证其结构，初步生物活性测定结果表明，该类化合物具有几丁质抑制活性。     

活性炭复合滤嘴吸附性能的热脱附研究

采用热脱附与气相色谱-质谱联用技术对活性炭滤嘴中活性炭和乙酸纤维脱附的组分进行了定性分析,并用峰面积归一化法测定了所含挥发性成分的质量分数,活性炭脱附组分共鉴定出芳香族化合物、醛酮类、烟碱、酸类、酯类等62种挥发性化合物.结果表明方法具有较好的重现性;为评价活性炭滤嘴的吸附性能提供了一种参考方法.     

顶空固相微萃取-气相色谱-质谱法测定小米黄酒风味成分

为全面了解小米黄酒风味成分的构成和气味特征,优化了85μm聚丙烯酸酯(PA)、100μm聚二甲基硅氧烷(PDMS)、75μm碳分子筛(CAR)/PDMS、50/30μm二乙烯基苯(DVB)/CAR/PDMS萃取头提取小米黄酒风味成分的条件,采用顶空固相微萃取(headspace solid phase microextraction,HS-SPME)-气相色谱-质谱法(GC-MS)对风味成分进行定性、定量分析,并计算气味活性值(odor active value,OAV),同时利用OAV分析风味成分的气味特征和气味强度。结果显示:不同萃取头的最优萃取条件为样品量8 mL、萃取时间40 min、萃取温度60℃、NaCl添加量1.5 g。小米黄酒风味成分由醇、酯、含苯化合物、烃、酸、醛、酮、烯、酚和杂环类化合物构成,醇为主要风味成分。通过OAV确定了苯乙醇、苯乙烯、2-甲基萘、1-甲基萘、苯甲醛、苯乙醛、2-甲氧基-苯酚为小米黄酒气味特征成分,苯基乙醇、苯乙醛对气味贡献最大。PA和PDMS萃取头分别对极性和非极性化合物具有较好的吸附效果,CAR/PDMS和DVB/CAR/PDMS萃取头对中等极性化合物具有较好的吸附效果。该研究全面了解了小米黄酒风味成分的构成,为其产品开发及品质控制提供理论了依据。     

The identification of new ATAD2 bromodomain inhibitors: the application of combined ligand and structure-based virtual screening

Ligand-based virtual screening (LBVS) and structure-based virtual screening (SBVS) approaches were used to identify new inhibitors for ATAD2 bromodomain. The LBVS approach was used to search 23,129,083 clean compounds to identify compounds similar to an active compound with reported pIC₅₀ equal to 7.2. Based on LBVS results, 19 compounds were selected. To perform SBVS, by applying nine filters on 23,129,083 clean compounds, 1,057,060 compounds were selected. After performing SBVS on these selected compounds with idock software, 16 compounds with the lowest binding energies were selected. More accurate molecular docking analysis was performed on these 35 selected compounds by using iGEMDOCK software and six of them with the lowest binding energies were selected as hit compounds. These compounds were zinc36647229, zinc77969074, zinc13637358, zinc77971540, zinc12991296 and zinc19374204.     

宝明页岩柴油碱性氮化物的梯度富集及GC-MS分析

利用溶剂萃取和柱色谱等技术浓缩分离新疆宝明页岩油柴油馏分中的碱性氮化物。以宝明页岩柴油为原料,经糠醛溶剂精制,初步得到富集碱性氮化物的抽出油。以抽出油为深度富集碱性氮化物的原料,采用柱色谱等分离方法,从抽出油中分离得到碱性氮化物。利用傅立叶变换红外光谱仪(FT-IR)和气相色谱-质谱联用仪(GC-MS)分别对富集的碱性氮化物进行官能团检测和定性、定量分析。结果表明:新疆宝明页岩油柴油馏分中的碱性氮化物经溶剂精制和柱色谱等分离方法梯度富集后,碱性氮化物的质量分数由抽出油的12.08%提高到最终产物的69.48%,并在富集分离的产物中鉴定出60种碱性氮化物,其中主要为苯胺类、喹啉类和吡啶类化合物,各占25.85%,23.56%和16.52%。     

催化柴油中氮化物分布的气相色谱-原子发射光谱分析方法的研究

建立了催化柴油馏分中各种氮化物类型分布的气相色谱-原子发射光谱(GC-AED)分析方法,考察了色谱条件和不同的试剂气压力对各种氮化物分离和检测灵敏度的影响,定性(或归类)了某典型催化柴油中的73个氮化物,计算了程升条件下各种氮化物的保留指数,为不同实验室的定性比较提供了依据。以峰面积对质量浓度作图,氮化物在2.0~600 mg/L浓度范围内,AED检测器对不同氮化物有良好的线性响应,线性相关系数达0.998。几种氮化物(吲哚、1-甲基吲哚、C2-吲哚、咔唑、1-甲基咔唑、1,8-二甲基咔唑)峰面积的相对标     

Gas chromatography-olfactometry analysis of the volatile compounds of two commercial Irish beef meats

The volatile flavour compounds of two commercial Irish beef meats (labelled as conventional and organic) were evaluated by gas chromatography-olfactometry and were identified by gas chromatography-mass spectrometry. The volatile compounds were isolated in a model mouth system. Gas chromatography-olfactometry was performed by a group of eight assessors using the detection frequency methodology. The odours of the detected compounds were described as well. Eighty-one volatile compounds were identified, 11 compounds of which possessed odour activity in the first beef sample and 14 of which in the second meat sample. Ten volatile flavour compounds were common to both: methanethiol, dimethyl sulphide, 2-butanone, ethyl acetate, 2- and 3-methylbutanal, an unknown compound, 2-octanone, decanal and benzothiazole. Two unknown compounds were only detected in the first sample while 2,3-pentanedione, 4-methyl-3-penten-2-one, 2-heptanone, dimethyl trisulphide and nonanal were only perceived in the second beef. Significant differences in terms of detection frequency, odour characteristics and in nature of the volatile flavour compounds were emphasised between the two samples.     

2D-QSAR Studies on Triazolone Compounds Containing Benzenesulfonic Amide

The geometry structures of 6 triazolone compounds containing benzenesulfonic amide were fully optimized with DFT (Density Functional Theory) method at the B3LYP/6-31G level, and the structural and electronic parameters of the compounds were calculated. The hydrophobic and topological parameters of the title compounds were calculated by HyperChem software. The mono-and bi-parametric models between the parameters and biological activity of the compounds were analyzed by Multiple Linear Regression method based on Hansch-Fujita model. The results show that the activities of the title compounds were increased with higher hydrophobic property logP and molecular volume V, lower molecular energy ETOTAL and elec-tronegative of benzene ring Qph.     

Synthesis of new bis(thiosemicarbazone) derivatives and DFT analysis of antioxidant characteristics in relation to HAT and SET reactions

A series of new bis(thiosemicarbazones) have been synthesized from terephthalaldehyde and various thiosemicarbazides. IR, ¹H NMR, ¹³C NMR spectroscopic methods, and elemental analysis were used to characterize the identification of the synthesized compounds. The in vitro antioxidant activity determinations were made using the 1,1-Diphenyl-2-Picryl Hydrazil (DPPH) method. The compounds exhibited very different inhibition activities with the change of groups attached to the bis(thiosemicarbazone) structure. The spectral and electronic properties of the compounds were investigated by DFT calculation. Intramolecular interactions were analyzed by QTAIM and IRI calculations. Intrinsic bond strength index values of the N–H bonds, Fukui indices and the local electron affinities of the compounds were calculated, and the relationships between the compounds and their antioxidant activity properties were investigated. The SET and HAT mechanisms in the reactions of the compounds with DPPH were affected by the concentration of the compounds, and the possible effects of the parameters supporting the dominant characteristics in these reactions were examined using theoretical data.     

二维网状结构超分子化合物[Cu(dafo)2(H2O)2](Cl04)2的两种同分异构体的合成与表征

用4，5—二氮芴-9-酮（dafo）、邻苯二甲酸、高氯酸铜和4，5—二氯芴—9— 酮(dafo)、苯甲酸、高氯酸铜进行混和反应时分别得到亮蓝色和蓝绿色晶体，它们 的结构通过单晶X射线衍射法测定。其单晶结构表明，这两种化合物是同分异构体 ，组成都是C22H16Cl2CuN4O12。这两种化合物是通过氢键形成的具有二维网状结构 的超分子化合物，并通过元素分析、红外光谱、热分析对两种化合物进行了表征。     

Novel high birefringence bistolane liquid crystals with lateral fluorosubstituent

Twelve compounds based on lateral fluorinated bistolane moieties with cyano or trifluoromethyl terminal groups were synthesised with Hagihara–Sonogashira cross-coupling reaction. The molecular structures of the compounds were confirmed by Fourier transform infrared, ¹H-nuclear magnetic resonance and mass spectrometry. The transition temperatures, optical textures and optical anisotropies were determined by differential scanning calorimetry, polarizing optical microscopy and ultraviolet microscopy. The effects of the terminal substituents and lateral fluorosubstituent group on their physical properties were investigated and discussed. The compounds with lateral double fluorosubstituent and cyano terminal group exhibited nematogenic texture, while other compounds showed smectic phase. All the compounds exhibited wide liquid crystal temperature ranges and high clearing points. Interestingly, the compounds have the high birefringence in the range of between 0.480 and 0.633.