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Isomer
Time of Update: 2020-12-16
Structural heterogeneity is heterogeneous due to the different binding order and way of each atom in a molecule, including carbon frame isomer, position heterogeneity, category heterogeneity and so on.
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Analysis of d--Aspartyl Isomers at Specific Sites in Proteins
Time of Update: 2020-12-15
We here describe the method to identify the specific sites ofd -β-aspartic acids inversion in proteins.
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Clin Cancer Res: The efficacy of the second-generation yew-alkane Kabatsai treatment for metastatic stomach cancer.
Time of Update: 2020-10-04
(effects of HER2 state on the efficacy of kabatha) (effects of M2 macrophage characteristics on the efficacy of kabatha) HER2 amplification or over-expression was associated with increased course control, PFS, and overall survival.
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Oral yew alkane treatment of breast cancer phase 3 clinical end of adverse reactions or worry.
Time of Update: 2020-09-29
On August 24, Odonate Therapeutics announced the positive results of Tesetaxel (a researched oral dosage form of yew) for the treatment of phase 3 clinical studies in patients with metastasis breast cancer (MBC).
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Science: Hartwig group achieves high-efficiency boration of alkane-level C-H bonds
Time of Update: 2020-05-30
Compared with the development of more mature C (sp2)-H key activation, the study of C(sp3)-H key selective elective elective reaction is still relatively lagging, most studies focus on the cepene, acrylic, three-level C(sp3)-H key. For non-activated
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Science: Hartwig group achieves high-efficiency boration of alkane-level C-H bonds
Time of Update: 2020-05-28
Professor John Hartwig broke through this limitation by using the non-activated fatty hydrocarbon substrate as a limiting reagent for the first time to achieve a high-selective boration of the first-level C(sp3)-H key without the involvement of a guided group.
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What are isomers?
Time of Update: 2020-04-03
Isomers are compounds with the same molecular formula, which means that although they are composed of the same number of atoms of the same type, they are different in spatial structure or arrangement.
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synthesis strategy for solid-phase [2 + 2] photoreaction to generate pure cyclobutane isomers
Time of Update: 2020-01-17
The construction of three-dimensional organic molecules with target structure has become a new research field, and has been applied to drug discovery, material engineering
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Yang Yingwei, Professor of Jilin University Research Group: non porous adaptive crystals for the separation of brominated Alkane Isomers
Time of Update: 2019-12-31
It is one of the most challenging research focuses in macrocyclic chemistry and organic supramolecular chemistry to use solid-phase host guest chemistry for high-precision
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of heteroatom alkanes under the cooperation of photo oxidation reduction catalyst and hydrogen atom transfer catalyst
Time of Update: 2019-06-21
Introduction: monofluoroalkenes are widely used in material science and pharmaceutical chemistry, for example, to improve the efficacy, lipid solubility and anti enzyme degradation
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of Sciences, have made new progress in the research of catalysts for alkane dehydrogenation
Time of Update: 2018-11-19
At the same time, the layered structure of mxene material is also conducive to the heat and mass transfer in the reaction process, so that the catalyst has high specific activity and stability.
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JACS: research group of Huang Zheng, Shanghai Institute of organic science, Chinese Academy of Sciences has made progress in alkane conversion
Time of Update: 2018-08-26
Recently, the research group has designed a homogeneous bimolecular catalytic system to realize the efficient and highly regioselective conversion of straight alkanes to straight aldehydes and amines.
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synthesis and absolute configuration determination of laingolide B isomer
Time of Update: 2018-06-02
(photo source: Organic letters) next, the author used 4-ethoxy-4-oxobutylbromide zinc (9), (s) - (-) - 3-methoxy-2-methyl-3-oxopropyl-zinc bromide (22a) and 6-ethoxy-6-oxhexyl-zinc bromide (22b) to carry out Negishi coupling reaction with (z) - silalkylated alkenyliodine (scheme 3), respectively.
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Sepaflash ® C18 reversed phase purification column application case -- Separation and purification of CIS and trans isomers
Time of Update: 2018-04-11
Based on this situation, the purification personnel tried to use the rapid preparation of liquid chromatography sepabean ® machine with sepaflash ® series reversed-phase purification column to separate and purify the samples.
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Synthesis of biselyngbyolide B and its c21-c22 z-isomer
Time of Update: 2018-04-06
Chem.) for the synthesis of c1-c13 fragment 10, as shown in the figure (scheme 2): the author obtained 14 from the reaction of compound 12 (org.
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Construction of a unique structure of poly (ladder alkanes) from Gemini monomers
Time of Update: 2017-08-31
Chu and his team from the University of North Dakota in the United States realized the first synthesis of poly (ladder alkanes) through the [2 + 2] Photocyclization addition reaction of conjugated dienes on the solid phase (angel.
