Blue light-promoted N–H insertion of amides, isatins, sulfonamides and imides into aryldiazoacetates: Synthesis of unnatural α-aryl amino acid derivatives
作者:Celso Y. Okada、Caio Y. dos Santos、Igor D. Jurberg
DOI:10.1016/j.tet.2020.131316
日期:2020.12
A photochemical protocol using blue light allows the N–H insertion of amides, isatins, sulfonamides and imides into aryldiazoacetates to afford the corresponding α-amino esters. This method is experimentally simple, inexpensive and tolerates numerous functional groups, thus allowing the straightforward preparation of a variety of α-aryl amino acid derivatives in good yields.
A Convenient Reductive Deamination (Hydrodeamination) of Aromatic Amines
作者:Yapin Wang、Frank S. Guziec
DOI:10.1021/jo010681w
日期:2001.12.1
by amination of the corresponding arylamine methanesulfonamides using chloroamine under alkaline conditions. The intermediate aryl methanesulfonylhydrazines directly eliminate methanesulfinic acid, affording diazenes which extrude nitrogen affording the desired deaminated products. Both sulfonamide formation and reduction reactions occur in high yield and are compatible with a variety of functional groups
Discovery and Development of Metal-Catalyzed Coupling Reactions in the Synthesis of Dasabuvir, an HCV-Polymerase Inhibitor
作者:David M. Barnes、Shashank Shekhar、Travis B. Dunn、Jufang H. Barkalow、Vincent S. Chan、Thaddeus S. Franczyk、Anthony R. Haight、John E. Hengeveld、Lawrence Kolaczkowski、Brian J. Kotecki、Guangxin Liang、James C. Marek、Maureen A. McLaughlin、Donna K. Montavon、James J. Napier
DOI:10.1021/acs.joc.8b02690
日期:2019.4.19
coupling reactions were developed. First, the copper-catalyzed coupling of uracil with aryl iodides, employing picolinamide 16 as the ligand, was discovered. Later, the palladium-catalyzed sulfonamidation of aryl nonaflate 33 was developed, promoted by electron-rich palladium complexes, including the novel phosphine ligand, VincePhos (50). This made possible a convergent, highly efficient synthesis
[EN] ION CHANNEL ANTAGONISTS/BLOCKERS AND USES THEREOF<br/>[FR] ANTAGONISTES/BLOQUEURS DES CANAUX IONIQUES ET LEURS UTILISATIONS
申请人:SHANGHAI EAST HOSPITAL
公开号:WO2021114313A1
公开(公告)日:2021-06-17
Provided are ion channel antagonists/blockers and uses thereof. Specifically, it provides the compounds of formula (I) or pharmaceutically acceptable salts, stereoisomers, solvates or prodrugs, preparation method therefor and application thereof. Definition of each group in the formula can be found in the specification for details. Provided is also pharmaceutical composition useful for treatment of heart disease and other ion channel related diseases.
One-step formation of dihydrofuranoindoline cores promoted by a hypervalent iodine reagent
作者:Elsa Deruer、Sylvain Canesi
DOI:10.1039/c7ob00326a
日期:——
various substituted anilines containing a sulfonyl group in the presence of a hypervalent iodine reagent, a perfluorinated alcohol and furan promotes a formal dearomatizing [2 + 3] cycloaddition process, leading to a dihydrofuranoindoline core in useful yields. Thereafter, these functionalized systems can be used for further transformations, yielding potential key intermediates for the total synthesis of