Copper-Catalyzed Conjugate Addition of Carbonyls as Carbanion Equivalent via Hydrazones
作者:Siyi Luo、Marie Peng、Pierre Querard、Chen-Chen Li、Chao-Jun Li
DOI:10.1021/acs.joc.1c01380
日期:2021.9.17
catalyzed by readily available copper complexes at room temperature. The employment of mesitylcopper(I) and electron-rich phosphine bidentateligand is a key factor affecting reactivity. The reaction allows various aromatic hydrazones to react with diverse conjugated compounds to produce 1,4-adducts in yields of about 20 to 99%.
Carbonyls as Latent Alkyl Carbanions for Conjugate Additions
作者:Xi-Jie Dai、Haining Wang、Chao-Jun Li
DOI:10.1002/anie.201700059
日期:2017.5.22
Conjugateaddition of carbon nucleophiles to electron-deficient olefins is one of the most powerful methods for forming carbon–carbon bonds. Despite great achievements in controlling the selectivity, variation of the carbon nucleophiles remains largely underexplored, with this approach relying mostly on organometallic reagents. Herein, we report that naturally abundant carbonyls can act as latent carbon
The present invention provides compounds of formula (I): Formula (I) compositions comprising such compounds; the use of such compounds in therapy; and methods of treating patients with such compounds; wherein A, Y, n, R1, R2A, R2B, R3 and *1 are as defined herein.
METHODS AND COMPOSITIONS RELATING TO GENOTOXIN COLIBACTIN
申请人:PRESIDENT AND FELLOWS OF HARVARD COLLEGE
公开号:US20200055836A1
公开(公告)日:2020-02-20
The technology described herein is directed to compounds which are substrates for ClbP, acting as fluorescent probes for ClbP activity. Further provided herein are methods for measuring ClbP activity, screening for ClbP inhibitors, detecting colibactin, and/or diagnosing cancer, which utilize the substrate compounds.
The present invention provides a novel compound having an antiviral action, in particular, an HIV replication inhibiting action, as well as a pharmaceutical composition, in particular, an anti-HIV agent.
wherein, a broken line means the presence or absence of a bond; R
1
is substituted or unsubstituted alkyl etc., R
2
is substituted or unsubstituted alkyloxy etc.; n is 1 or 2; R
3
is a substituted or unsubstituted aromatic carbocyclic group; R
4
is a hydrogen atom etc.; R
5
is a substituted or unsubstituted aromatic carbocyclic group etc.; Y is a single bond etc.; R
6
is substituted or unsubstituted alkyl; R
7
is —Z—R
71
etc.; Z is —NR
72
—CO— etc.; R
71
is substituted or unsubstituted alkyl etc.; R
72
is a hydrogen atom etc.