Cyclo相关论文
重氮基的混合物通常被用作 carbene 先锋。传统地， dirhodium，铜和铁催化剂被用来分解重氮基的混合物形成关键金属 carbene 中介。最......
在二氯甲烷中,化合物(p-cymene)Ru2(μ-Se2)(S2C2B10H10)2(1)与l-乙炔基环己醇反应得到加成产物(p-cymene)-Ru2(μ-Se2)(S2C2B10H1......
The mechanism and kinetics for the reaction of propene(CH3CH=CH2) molecule with O(1D) atom were investigated theoretical......
Histone deacetylases(HDACs) are considered to be among the most promising targets for the development of anti-cancer dru......
目的:对疣孢漆斑菌发酵液正丁醇部位进行化学成分研究。方法:采用各种提取分离纯化技术进行化学成分分离,运用波谱技术进行结构鉴......
Gelation capability of cysteine-modified cyclo(L-Lys-L-Lys)s dominated by Fmoc and Trt protecting gr
A series of symmetrical peptidomimetics(3–8) based on cysteine-modified cyclo(L-Lys-L-Lys)s were synthesized, and their......
Dielectric spectra of 4A zeolite particles bulked in deionized water(4A/W) or cyclohexane(4A/C) were measured respective......
Preparation and Action Mechanism of Inclusion Complex of β-cyclodextrin and Sulfurized Isobutylene a
The inclusion complex of β-cyclodextrin(β-CD) and sulfurized isobutylene(T321) was prepared with a co-precipitation me......
Photocatalytic C-H Bonds Activation:Ambient Carbonylation of Cyclohexane by Co(acac)_2 Under Ultravi
A high turnover number was achieved in the photocatalytic carbonylation of C - H bonds of cyclohexane catalyzed by Co (a......
A series of novel chiral C 2 symmetric bis(oxazoline) ligands have been synthesized. The copper and magnesium comp......
甾体化合物的种类极多,最主要的有固醇(sterols)、胆汁酸(bile acids)、性激素(sex hormones)、副肾皮激素(adrenocortical hormo......
Simultaneous inversion of configurations of C_(22),C_(23) in 24S-ethyl-3,5-cyclo-cholestane-22S,23S-
In this paper,obtainment of 3 by simultaneous inversion of configurations of C_(22),C_(23)in 2 via its ditosylate or di......
STUDIES ON CHEMICAL CONSTITUENTS OF CHINESE MARINE FOLK REMEDIES-ISOLATION AND X-RAY STRUCTURAL CHAR
Cyclo-L-prolyl-glycyl was isolated from Diodon novemaculatus (Bleeker) and characterised by X-ray diffraction analysis.......
STUDIES ON THE ORGANOSILICON REACTIVE INTERMEDIATES——Ⅳ.GENERATION AND REACTION OF CYCLOPROPYLPHENYLS
In the chemistry of silylene and carbene,owing to the special abilities of cyclo-propyl containing silylenes and carben......
The wafer level hermetic package method was studied experimentally in low temperature for optoelectronic devices with be......
CYCLO 减速机是一种摆线针轮啮合型一齿差行星减速机,它可象普通齿轮减速机、蜗杆减速机和一般的行星减速机一样传递运动及动力。......
A new class of chiral pyrrolidine ligands for homogeneous catalytic enantioselective cyclopropanatio
A new class of chiral pyrrolidine ligands have been successfully synthesized and their chiral induction abilities have ......
Two main unknown components in the by-product of camphor hydration synthesis were separated and identified by fine fract......
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Two new ent-kaurane diterpenoids, xerophilusin E (1) and xerophilusin F (2), were isolated from the leaves of Isodon xer......
WT5”HZ]Four new organosilane compounds containing cholesteryl group were synthesized by esterification of 3,3,5,5 tetr......
The new process for cyclohexane oxidation with oxygen-enriched air developed by Baling Petrochemical Companyhas been ap......
Two new chiral stationary phases, 2,3 di O acetyl 6 O trimethylsilyl β cyclodextrin (DATBCD) and 2,6 di O tr......
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A New Approach to 2,3-Dihydro-1H-1,5-Benzodiazepines from the Reaction of o-Nitrophenylazide with α,
o-Nitrophenylazide was reduced by SmI2 in anhydrous THF at room temperature to produce active intermediate 2 (samarium a......
从中国民间草药短瓣花 (BrachystemmacalycinumD .Don)干燥根的乙醇提取物中分离得到 4个新的微量环八肽 ,命名为短瓣花环肽A、B、......
An easy and mild way to construct 13-hydroxy-9,15-cyclo GA skeletons was reported and it could be used as a general prot......
Treatment of CptRh(PMe3)Cl2(1) (Cpt=5η-tBu2C5H3) with [Et4N]2Se6 in DMF solution leads to the for-mation of cyclo-tetra......
Objective: To evaluate the feasibility and activity of continuous-infusion of fluorouracil in association with epirubici......
目的 以缺氧/再复氧(H/R)和脂多糖(LPS)刺激人结肠上皮细胞株(FHC)模拟体内肠上皮细胞遭受缺血、缺血/再灌注和炎症打击的病理过程......
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美国“国际哈维斯特”公司生产的CYCLO系列500型8行播种机,是七十年代新产品,已在美、英意、德国推广使用. 该播种机能播精选或未......
圜氯胍(cyclo-chloroguanidine)为一疗效较好的抗疟药,结构式如下:其合成方法,一般均是将对氯苯胺与双氰胺及丙酮共同在盐酸介质......
用抑制蛋白质合成的方法,测定了人体肝癌细胞系(SMMC-7721)糖皮质激素受体(GCR)的半衰期。结果显示,在蛋白质合成被抑制79.30±3.6......
目的:研究中华大蟾蜍皮的水溶性成分。方法:利用反复硅胶柱色谱、Sephadex LH-20 凝胶柱色谱、重结晶等手段分离纯化蟾皮的水溶性......
目的:研究乌藤中的化学成分。方法:运用硅胶柱色谱技术分离化合物并用光谱技术鉴定其结构。结果:从乌藤中分离并鉴定得到2个新的裂......
对分离自南海海绵的真菌Penicillium terrestre中的化学成分进行研究。采用多种色谱手段进行分离纯化,得到单体化合物,通过理化性......
目的:对壁虎科动物无蹼壁虎Gekko swinhonis的化学成分进行研究。方法:采用硅胶Sephadex LH-20,ODS及HPLC等柱色谱法进行分离纯化,......
THEORETICAL STUDY ON THE 1,4-CYCLO-ADDITION REACTION BETWEEN SINGLET OXYGEN (~(1)O_(2)) AND IMIDAZOL
Quantum chemical ab initio method has been used to study the cycloaddition reaction between singlet oxygen and imidazol......
在制备含双硫配体三价稀土离子配合物的醇类溶渣中分离出通式为(RNCS_2)_2的二聚物,应用ENRAF-NONIUS CAD-4四圆衍射仪收集衍射数......
九羰基二硫三铁是少有的稳定的铁羰簇合物中的一个.有时在输煤气管道中可以发现它的存在.簇中的铁与硫结合成强的Fe—S键,是形成......
AIM: To study the effects of somatostatin (SST) andits antagonist cyclo- (7 - aminoheptanoyl- Phe-D-Trp-Lys-Thr [Bzl]) ......
目的研究橙色手指海绵(Axinella sp.)的化学成分。方法采用硅胶柱色谱、Sephadex LH-20和反相半制备HPLC等方法分离化合物,根据波......
以改进的方法合成了环状二肽(CycloL-Phe-L-His),它在苯甲醛和间苯氧基苯甲醛的不对称氰醇化反应中显示了高活性和高对映选择性。......
从缬氨酸,L-丝氨酸,L-苏氨酸,L-异亮氨酸出发合成了海洋环肽Ascidiacy-clamide的异构体cyclo-[-D,L-(Val)Thz-L-Ser-L-Ile-D,L-(Va......
为了研究海洋来源真菌Ascotricha sp.ZJ-M-5的次级代谢产物,采用大孔吸附树脂、硅胶、ODS开放柱以及Sephadex LH-20等柱色谱方法进......
A phytotoxin from Xanthomonas campestris pv.retroflexus was isolated using a chromatographer and HPLC,and the components......
