Diversification of α-ketoamides <i>via</i> transamidation reactions with alkyl and benzyl amines at room temperature
作者:Shweta Singh、Sureshbabu Popuri、Qazi Mohammad Junaid、Shahulhameed Sabiah、Jeyakumar Kandasamy
DOI:10.1039/d1ob01021b
日期:——
A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl and benzyl amines in the absence of a catalyst or base at room temperature. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3.
Selective amidation by a photocatalyzed umpolung reaction
作者:Debasish Ghosh、Rajesh Nandi、Saikat Khamarui、Sukla Ghosh、Dilip K. Maiti
DOI:10.1039/c9cc01079c
日期:——
Herein, a metal-catalyzed organic transformation merged with another organophotocatalyst has been developed under mild conditions for the production of α-ketoamides.
在此,已经开发了一种金属催化的有机转化,与另一种有机光催化剂在温和条件下结合,用于生产α-酮酰胺。
Tricyclic modulators of the glucocorticoid receptor, AP-1, and/or NF-kB activity and use thereof
申请人:Weinstein S. David
公开号:US20050187242A1
公开(公告)日:2005-08-25
Novel non-steroidal compounds are provided which are useful in treating diseases associated with modulation of the glucocorticoid receptor, AP-1, and/or NF-κB activity including obesity, diabetes, inflammatory and immune diseases, and have the structure of formula (I)
or stereoisomers or prodrugs or pharmaceutically acceptable salts thereof, wherein B, J, K, Z, R, R
a
, R
b
, R
c
, R
d
, R
q
, R
w
, m and n are defined herein. Also provided are pharmaceutical compositions and methods of treating obesity, diabetes and inflammatory or immune associated diseases comprising said compounds.
α-Keto amides were dimerized in the presence of SmI2 in THF to give substituted tartaric amides in moderate to good yields. Although the dimerization of the secondary keto amides did not proceed stereoselectively, racemic tartaric amides were produced exclusively in the case of the tertiary keto amides.
Reactions of 4-substituted 5H-1,2,3-dithiazoles with primary and secondary amines: fast and convenient synthesis of 1,2,5-thiadiazoles, 2-iminothioacetamides and 2-oxoacetamides
作者:Lidia S. Konstantinova、Oleg I. Bol'shakov、Natalia V. Obruchnikova、Svetlana P. Golova、Yulia V. Nelyubina、Konstantin A. Lyssenko、Oleg A. Rakitin
DOI:10.1016/j.tet.2010.04.033
日期:2010.6
aliphatic amines and benzylamine afforded 1,2,5-thiadiazole-3(2H)-thiones3 and 1,2,5-thiadiazol-3(2H)-ones 6, respectively. The structure of dithiazolone 3f was confirmed by X-ray diffraction analysis. The reaction of dithiazolone 2e bearing an electron-donating methyl group in the 4-position gave 2-oxoacetamide 7e in high yield. The reaction of thiones 1 with secondary aliphatic amines in DMSO yielded
在室温下用伯脂族胺和苄胺处理在氯仿中的5 H -1,2,3-二噻唑-5-硫酮1和在THF中的5 H -1,2,3-二噻唑-5-酮2 1,2,5-噻二唑-3(2 H)-硫酮3和1,2,5-噻二唑-3(2 H)-ones 6。通过X射线衍射分析确认了二噻唑酮3f的结构。在4-位带有供电子甲基的二噻唑酮2e的反应以高收率得到2-氧代乙酰胺7e。硫酮的反应1用DMSO中的脂肪族仲胺与仲硫磺一起以中等收率得到2-亚氨基硫代乙酰胺8。有趣的是,在相同条件下用仲胺处理二噻唑酮2可获得2-氧代乙酰胺9-相应的亚氨基衍生物10的水解产物,其分离为10b。提出了形成产物的通用机制。