A catalyst-free and additive-free method for the synthesis of benzothiazolethiones from <i>o</i>-iodoanilines, DMSO and potassium sulfide
作者:Xiaoming Zhu、Wenguang Li、Xiai Luo、Guobo Deng、Yun Liang、Jianbing Liu
DOI:10.1039/c8gc00477c
日期:——
Under catalyst-free and additive-free conditions, a novel, convenient, environment-friendly method for the synthesis of benzothiazolethiones from o-iodoanilines, K2S and DMSO has been developed.
Effect of structural change on acute toxicity and antiinflammatory activity in a series of imidazothiazoles and thiazolobenzimidazoles
作者:Larry J. Powers、S. W. Fogt、Z. S. Ariyan、D. J. Rippin、R. D. Heilman、Richard J. Matthews
DOI:10.1021/jm00137a022
日期:1981.5
The effect of structural change on the biological activity of a series of imidazothiazoles and thiazolobenzimidazoles is described. It was found that compounds with polar substituents at the 2 or 3 position of the ring system are less acutely toxic while maintaining antiinflammatoryactivity. Other structural changes, such as the incorporation of a gem-dimethyl substituent in the 6 position, increase
[EN] SELECTIVE HDAC6 INHIBITOR<br/>[FR] INHIBITEUR SÉLECTIF DE HDAC6
申请人:ROYAL COLLEGE SURGEONS IRELAND
公开号:WO2022129256A1
公开(公告)日:2022-06-23
A compound, which is according to formula (I) or is a pharmaceutically acceptable salt, solvate, ester or pro-drug thereof, for use as a medicament, wherein either (i) NR1R2together forms a 5- or 6- membered heterocyclic ring or (ii) R1and R2are independently selected from H and C1 to C12 alkyl; A is a non-aromatic ring, an aromatic ring or a double bond; X is NR3, S or O, where R3is selected from H and C1 to C12 alkyl; Y is S, NR4, CR4R5, or O, where R4and R5are independently selected from H and C1 to C12 alkyl; and Z is (CR6R7)n where R6and R7are independently selected from H and C1 to C12 alkyl and n is an integer from 1 to 6. The compounds of formula I are particularly useful for the treatment of cancer, neurodegenerative diseases and/or inflammation.
Thiocarbonyl fluoride generated in situ from difluorocarbene for cyclization of vicinal X-H substituted amines (X = N, O or S)
作者:Jia-Lu Hu、Mu-Xian Fu、Ji-Chang Xiao、Jin-Hong Lin
DOI:10.1016/j.jfluchem.2023.110212
日期:2023.11
for the cyclization of vicinal X-H substituted amines to provide various five-membered heterocycles. However, arylamines are required to be used and difluoromethylation of the NH bond or a newly generated S-H bond cannot be suppressed. Herein we describe the use of thiocarbonyl fluoride generated in situ as a thiocarbonyl source for the cyclization of vicinal X-H substituted alkyl amines (X = N, O
Malonicacid and derivatives have been well-known to undergo monodecarboxylation under relatively mild conditions and have been exclusively used as a C2 synthon. We report herein their new application as a C1 synthon via double decarboxylation promoted by sulfur and dimethyl sulfoxide. In the presence of amines as nucleophiles, a wide range of thioureas and thioamides as well as N-heterocycles were
众所周知,丙二酸及其衍生物在相对温和的条件下进行单脱羧,并专门用作C 2合成子。我们在此报道了它们作为 C 1合成子的新应用,通过硫和二甲亚砜促进的双脱羧作用。在胺作为亲核试剂存在的情况下,在温和的加热条件下,可以以良好至优异的产率获得各种硫脲和硫代酰胺以及N-杂环。