Synthesis of the First Thieno[3,4-c]thiophene Stabilized Only by Electronic Effects
摘要:
The stable, crystalline 1,3-dibromo-4,6-dicyanothieno[3,4-c]thio (3a) has been synthesized. This is the first example of a thieno[3,4-c]thiophene stabilized solely by electronic effects. The dicarbomethoxy dibromo analog 3b and the tetrabromo analog 3c were also-generated and found to be considerably less stable.
Synthesis and biological evaluation of novel benzimidazole derivatives and their binding behavior with bovine serum albumin
摘要:
A series of novel benzimidazole derivatives were synthesized and characterized by H-1 NMR, C-13 NMR, MS, IR and HRMS spectra. All the new compounds were screened for their antimicrobial activities in vitro by two-fold serial dilution technique. Bioactive assay manifested that the bis-benzimidazole derivative lid and its hydrochloride 13b exhibited remarkable antimicrobial activities, which were comparable or even better than the reference drugs Norfloxacin, Chloromycin and Fluconazole. The interaction evaluation of compound 11d with bovine serum albumin (BSA) by Fluorescence and UV-vis absorption spectroscopic method showed that BSA could generate fluorescent quenching under approximately human physiological conditions by the prepared benzimidazole compound lid as result of the formation of ground-state compound 11d BSA complex. The thermodynamic parameters indicated that the hydrogen bonds and van der Waals forces played major roles in the strong association of benzimidazole lid and BSA. (C) 2012 Elsevier Masson SAS. All rights reserved.
1,4-Hydroboration Reactions of Electron-Poor Aromatic Rings by N-Heterocyclic Carbene Boranes
作者:Wen Dai、Steven J. Geib、Dennis P. Curran
DOI:10.1021/jacs.0c00490
日期:2020.4.1
Reactions of N-heterocycliccarbeneboranes (NHC-boranes) with electron poor aromatic rings under photoredox conditions provide dearomatized 3-NHC-boryl-1,5-cycohexadienes, which are formally products of 1,4-hydroboration reactions. When regioisomers are possible, the more crowded (doubly ortho-substituted) product is formed preferably or exclusively. The mechanism is thought to involve oxidation of
AROMATIC AND HETEROAROMATIC COMPOUNDS USEFUL IN TREATING IRON DISORDERS
申请人:Cadieux Jean-Jacques
公开号:US20100240713A1
公开(公告)日:2010-09-23
This invention is directed to compounds of formula (I), wherein m, formula (II), R
1
, R
2
and R
3
are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment of iron disorders. This invention is also directed to pharmaceutical compositions comprising the compounds and methods of using the compounds to treat iron disorders.
Beye Norbert, Cava Michael P., J. Org. Chem, 59 (1994) N 8, S 2223-2226
作者:Beye Norbert, Cava Michael P.
DOI:——
日期:——
[EN] AROMATIC AND HETEROAROMATIC COMPOUNDS USEFUL IN TREATING IRON DISORDERS<br/>[FR] COMPOSÉS AROMATIQUES ET HÉTÉROAROMATIQUES UTILES DANS LE TRAITEMENT DE TROUBLES DU MÉTABOLISME DU FER
申请人:XENON PHARMACEUTICALS INC
公开号:WO2008151288A2
公开(公告)日:2008-12-11
[EN] This invention is directed to compounds of formula (I), wherein m, formula (II), R1, R2 and R3 are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment of iron disorders. This invention is also directed to pharmaceutical compositions comprising the compounds and methods of using the compounds to treat iron disorders. [FR] La présente invention concerne des composes de formule (I), dans laquelle m, formule (II), R1, R2 et R3 sont tels que définis dans la description, sous forme d'un stéréoisomère, énantiomère, tautomère de ceux-ci ou leurs mélanges ; ou un sel, solvate ou promédicament pharmaceutiquement acceptable de ceux-ci, pour le traitement de troubles du métabolisme du fer. L'invention concerne également des compositions pharmaceutiques comportant les composés et des procédés d'utilisation des composés pour traiter des troubles du métabolisme du fer.