Carbamoylimidazolium and thiocarbamoylimidazolium salts: novel reagents for the synthesis of ureas, thioureas, carbamates, thiocarbamates and amides
作者:Justyna A. Grzyb、Ming Shen、Chiaki Yoshina-Ishii、W. Chi、R.Stanley Brown、Robert A. Batey
DOI:10.1016/j.tet.2005.05.056
日期:2005.7
Carbamoylimidazolium salts act as efficient N,N-disubstituted carbamoylating reagents. These salts are readily prepared by the sequential treatment of secondary amines with N,N′-carbonyldiimidazole (CDI) and iodomethane. The carbamoylimidazolium salts are more efficient carbamoyl transfer reagents than the intermediate carbamoylimidazoles, as a result of the ‘imidazolium’ effect. Kinetic studies on
The present invention relates to antibiotic compounds of formula (I), to compositions containing these compounds and to methods of treating bacterial diseases and infections using the compounds. The compounds find application in the treatment of infection with, and diseases caused by, Gram-positive and/or Gram-negative bacteria, and in particular in the treatment of infection with, and diseases caused by, Neisseria gonorrhoeae.
[EN] 11,13-MODIFIED SAXITOXINS FOR THE TREATMENT OF PAIN<br/>[FR] SAXITOXINES MODIFIÉES 11,13 POUR LE TRAITEMENT DE LA DOULEUR
申请人:SITEONE THERAPEUTICS INC
公开号:WO2020072835A1
公开(公告)日:2020-04-09
Provided herein are compounds, pharmaceutical compositions comprising the compounds, methods of preparing the compounds, and methods of using the compounds and compositions in treating conditions associated with voltage-gated sodium channel function where the compounds are 11,13-modified saxitoxins according to Formula (I): (Formula (I)); where R1, and R2 are as described herein.
Catalytic C−H Arylation of SEM-Protected Azoles with Palladium Complexes of NHCs and Phosphines
作者:B. Barry Touré,、Benjamin S. Lane、Dalibor Sames
DOI:10.1021/ol053021c
日期:2006.5.1
[reaction: see text] The synthesis and catalytic evaluation of palladium complexes containing imidazolyl carbene ligand of varying steric and electronic properties is reported. These complexes catalyze the efficient C-Harylation of SEM-protected azole heteroarenes and thus provide a good method for preparation of a wide range of arylated free (NH)-azoles including pyrroles, indoles, imidazoles, and
A fragment merging approach towards the development of small molecule inhibitors of Mycobacterium tuberculosis EthR for use as ethionamide boosters
作者:Petar O. Nikiforov、Sachin Surade、Michal Blaszczyk、Vincent Delorme、Priscille Brodin、Alain R. Baulard、Tom L. Blundell、Chris Abell
DOI:10.1039/c5ob02630j
日期:——
instances of resistance to frontline TBdrugs there is the need to develop novel strategies to fight the worldwide TB epidemic. Boosting the effect of the existing second-line antibiotic ethionamide by inhibiting the mycobacterial transcriptional repressor protein EthR is an attractive therapeutic strategy. Herein we report the use of a fragment based drugdiscovery approach for the structure-guided systematic