Synthesis of Vinyl- and Aryl-Acyl Sulfonimidamides Through Pd-Catalyzed Carbonylation Using Mo(CO)<sub>6</sub>as ex situ CO Source
作者:Prasad B. Wakchaure、Sanjay R. Borhade、Anja Sandström、Per I. Arvidsson
DOI:10.1002/ejoc.201403148
日期:2015.1
We report the synthesis of N-(α,β-unsaturated acyl)-substituted sulfonimidamidesthrough a Pd-catalyzedcarbonylation protocol, employing sulfonimidamides as nucleophiles usingCO gas released exsitu, and vinyl/aryl halides and triflates as reagents. The reaction is general and offers a unique class of products in moderate to good yields for a wide range of substrates and electrophiles; for example
Synthesis of Novel Aryl and Heteroaryl Acyl Sulfonimidamides via Pd-Catalyzed Carbonylation Using a Nongaseous Precursor
作者:Sanjay R. Borhade、Anja Sandström、Per I. Arvidsson
DOI:10.1021/ol400049m
日期:2013.3.1
Hitherto unexplored aryl and heteroaryl acyl sulfonimidamides have been prepared through the development of a new Pd-catalyzed carbonylation protocol. This novel methodology, employing sulfonimidamides as nucleophiles and CO gas ex situ released from solid Mo(CO)6 in a sealed two-chamber system, yields a wide range of carbamate protected acyl sulfonimidamides in good to excellent yields.
Preclinical Characterization of Acyl Sulfonimidamides: Potential Carboxylic Acid Bioisosteres with Tunable Properties
作者:Sanjay R. Borhade、Richard Svensson、Peter Brandt、Per Artursson、Per I. Arvidsson、Anja Sandström
DOI:10.1002/cmdc.201402497
日期:2015.3
present the preclinicalcharacterization of novel compounds containing the linear acylsulfonimidamide functionality. Specifically, we studied the pKa, lipophilicity, in vitro metabolic stability, plasma protein binding, Caco‐2 permeability, and aqueous solubility for nine aryl acylsulfonimidamides. In comparison with widely used carboxylicacidbioisosteres, the acylsulfonimidamides were found to
本文中,我们介绍了含有线性酰基磺酰胺基酰胺官能团的新型化合物的临床前表征。具体来说,我们研究了九种芳基酰基磺酰亚胺酰胺的p K a,亲脂性,体外代谢稳定性,血浆蛋白结合,Caco-2渗透性和水溶性。与广泛使用的羧酸生物甾醇相比,根据所研究化合物的取代方式,发现酰基磺酰亚胺酰胺的酸性较低,而亲脂性较高。重要的是,在p ķ一个氮原子上的取代基和芳基取代基会极大地影响值(5.9-7.6)。此外,酰基磺酰亚胺酰胺的膜渗透率范围从中等到非常高,这与降低的p K a和低至可忽略的外排比相关。我们预见到,手性硫中心和线性酰基磺酰胺酰胺的结构多样性的两个处理将为药物设计和提高酸性候选药物的口服生物利用度提供新的机会。
An Efficient Synthesis of 1,3-Benzothiadiazin-4(3H)-one 2-Oxides: Novel Anthranilic Acid Derivatives
作者:Sitaram Pal、Indira Sen、Swarnendu Sasmal、Roger Hall
DOI:10.1055/s-0035-1561657
日期:——
Abstract Derivatives of anthranilicacid exhibit a range of useful biological activities. Herein we describe an efficient synthetic route to 1,3-benzothiadiazin-4(3H)-one 2-oxides via copper-catalyzed N-arylation of sulfonimidamides followed by cyclization. Such 1,3-benzothiadiazin-4(3H)-one 2-oxides can be viewed as novel anthranilicacid derivatives. Derivatives of anthranilicacid exhibit a range of