在Pd II / Cu(II)羧酸盐/ CO的存在下,依靠双重C–N键裂解策略,可实现具有高结构和功能多样性的胍衍生物的高效非酶分解为苯胺产物。在这种分解过程中,Pd II物质,Cu(II)羧酸盐和CO的协同作用不仅提供N-酰化剂,而且还提供引发该C–N键裂解序列的引发剂。目前的结果表明,Pd II / Cu(II)羧酸盐/ CO系统为非反应性C–N单键的高选择性裂解提供了一种方便实用的方法。
o-Iodoxybenzoic acid mediated oxidative condensation: synthesis of guanidines using 1,-3-disubstituted thiourea precursors
摘要:
An efficient and mild oxidative condensation procedure using o-iodoxybenzoic acid and triethylamine or ammonia as base has been developed for the synthesis of guanidines starting from easily synthesizable 1,3-disubstituted thioureas and amines or ammonia. (C) 2012 Elsevier Ltd. All rights reserved.
N-hydroxyguanidines as modulators of indoleamine 2,3-dioxygenase
申请人:Combs P. Andrew
公开号:US20070203140A1
公开(公告)日:2007-08-30
The present invention is directed to modulators of indoleamine 2,3-dioxygenase (IDO), as well as pharmaceutical compositions containing the same and methods for the treatment of IDO-associated diseases.
Macholdt-Erdniss, Chemische Berichte, 1958, vol. 91, p. 1992,1994
作者:Macholdt-Erdniss
DOI:——
日期:——
Ali, M. Umar; Paranjpe, M. G., Journal of the Indian Chemical Society, 1986, vol. 63, p. 253 - 255
作者:Ali, M. Umar、Paranjpe, M. G.
DOI:——
日期:——
Thinking like a nurse: you have to be a nurse to do it
作者:Suzanne Gordon
DOI:10.1046/j.1440-1800.2002.00131.x
日期:2002.3
Synthesis of Symmetrical and Unsymmetrical <i>N</i>,<i>N</i>′-Diaryl Guanidines via Copper/<i>N</i>-Methylglycine-Catalyzed Arylation of Guanidine Nitrate
作者:Hui Xing、Ye Zhang、Yisheng Lai、Yongwen Jiang、Dawei Ma
DOI:10.1021/jo300840x
日期:2012.6.15
CuI/N-methylglycine-catalyzed coupling reaction of guanidine nitrate with both aryl iodides and bromides takes place at 70-100 degrees C, affording symmetrical N,N'-diaryl guanidines with good to excellent yields. Unsymmetrical N,N'-diaryl guanidines can be assembled via monoarylation of guanidine nitrate with aryl iodides bearing a strong electron-withdrawing group and subsequent coupling with another aryl iodide.