Immune system identifies "double insurance" for new coronary mutant virus
Time of Update: 2021-02-02
The new coronavirus antigen protosetotes identified by human T-cells are very different from those produced by B cells and are more diverse and not limited to the subject binding domain (RBD) of the hedgehog protein or hedgehog protein.
Study finds targeted ceramide double bond improves insulin resistance and fatty liver
Time of Update: 2020-06-02
the findings highlight the role of ceramide in metabolic health and point out that DES1 is a "drug-targeted" target that could be used to develop new ways to treat metabolic disorders such as prediabetes, diabetes and heart disease.
of alkenyl to carbon carbon bond via four eight external double bond ring metal transition state under the action of guiding group
Time of Update: 2019-12-26
Recently, Professor Zhang Jian and Zhong Guofu of Hangzhou Normal University published a research paper entitled "geminal group directed olefinal C-H functional via four - toeight member exo metallocycles" (DOI: 10.1038 / s41467-019-13098-1) in nature communications.
-component double cyclization and ring opening: Construction of benzo [e] [1,4] diazo-3-one reaction by breaking double C-O bond
Time of Update: 2019-10-16
Recently, the research group of Professor Wu Anxin of central China Normal University has made a new breakthrough in the new molecular design of 1,4-benzodiazepine skeleton (DOI: 10.1021/acs.orglett.9b02789).
Suero group, Catalonia Institute of chemistry, Spain: new rhodium Carbyne intermediate initiated simple olefin carbon double bond breaking reaction
Time of Update: 2019-09-24
This species undergoes cyclopropanation ring opening reaction with carbon carbon double bond in simple olefins to generate allylic positive ions, which are subsequently captured by nucleophiles to obtain allylic compounds rich in functional groups (Fig. 2).
JACS: Dong guangbin group of the University of Chicago realized the double carbon ring expansion of 1-indanone by inserting ethylene into the C-C bond
Time of Update: 2019-08-14
SOC.) firstly, the author used the unsubstituted 1-indanone (1a) as the model substrate, and optimized the reaction conditions such as different aminopyridine, ligands, solvents, additives, temperature and pressure of ethylene, etc.
Stereoselective construction of trisubstituted double bonds with improved Julia kocienski reagent
Time of Update: 2018-04-24
That using the improved Julia kocienski reagent for stereoselective construction of three substituted double bonds, and used it in the total synthesis of limazepine e (DOI: 10.1021 / ACS.
Angelw. Chem. Int. ed.: Chemist first synthesized boron tellurium double bond
Time of Update: 2017-10-27
In the past, the reported work mainly focused on the multivalent bond between boron and sulfur elements (source: angelw.
Hubei Province is identified as the dominant region of double low rape in the Yangtze River Basin
Time of Update: 2003-03-18
Two national rape breeding research institutions, Huazhong Agricultural University and CNPC, provide strong scientific and technological support for the production and development of high-quality rape in Hubei Province.