Directed <i>ortho</i>-Metalation–Cross-Coupling Strategies. One-Pot Suzuki Reaction to Biaryl and Heterobiaryl Sulfonamides
作者:Cédric Schneider、Ellen Broda、Victor Snieckus
DOI:10.1021/ol201175g
日期:2011.7.15
A general synthesis of stable ortho-boropinacolato aryl and heteroaryl sulfonamides by directed ortho-metalation (DoM) and either MeOBPin or i-PrOBpin electrophile quench, 3 -> 4, is described. A one-pot metalation-Suzuki cross-coupling procedure for the synthesis of biaryis and heteroblaryls, 3 -> 5, and a complementary DoM-Ir-catalyzed boronation sequence (Scheme 6) are delineated.
Synthesis and SAR of selective small molecule neuropeptide Y Y2 receptor antagonists
作者:Gopi Kumar Mittapalli、Danielle Vellucci、Jun Yang、Marion Toussaint、Shaun P. Brothers、Claes Wahlestedt、Edward Roberts
DOI:10.1016/j.bmcl.2012.04.107
日期:2012.6
Highly potent and selective small molecule neuropeptideYY2receptorantagonists are reported. The systematic SAR exploration of a hit molecule N-(4-ethoxyphenyl)-4-[hydroxy(diphenyl)methyl]piperidine-1-carbothioamide, identified from HTS, led to the discovery of highly potent NPY Y2antagonists 16 (CYM 9484) and 54 (CYM 9552) with IC50 values of 19 nM and 12 nM respectively.
<i>para</i>-Selective Alkylation of Sulfonylarenes by Cooperative Nickel/Aluminum Catalysis
作者:Shogo Okumura、Yoshiaki Nakao
DOI:10.1021/acs.orglett.6b03741
日期:2017.2.3
A method for the para-selective alkylation of a variety of arenesulfonamides and aromatic sulfones with 1-alkenes by cooperative nickel/aluminum catalysis has been developed. Taking advantage of the sulfornyl functionality serving as a removable ortho-directing group, the reaction can be applied to facile access to 1,3-dialkyl-substitued benzenes.