Catalytic Asymmetric Addition of Dialkylzinc Reagents to α-Aldiminoesters
作者:Sandeep Basra、Michael W. Fennie、Marisa C. Kozlowski
DOI:10.1021/ol0602093
日期:2006.6.1
The first catalytic, enantioselectiveaddition of organozinc reagents to alpha-aldiminoesters is described. The use of a Lewis acid/Lewis base containing bifunctional catalyst preorganizes both reactive substrates to promote enantioselectiveaddition over the racemic background reaction and alternative addition modes. Alcohol additives were found to enhance the enantioselection. The addition product
Discovery of Phosphonic Diamide Prodrugs and Their Use for the Oral Delivery of a Series of Fructose 1,6-Bisphosphatase Inhibitors
作者:Qun Dang、Srinivas Rao Kasibhatla、Tao Jiang、Kevin Fan、Yan Liu、Frank Taplin、William Schulz、Daniel K. Cashion、K. Raja Reddy、Paul D. van Poelje、James M. Fujitaki、Scott C. Potter、Mark D. Erion
DOI:10.1021/jm8001235
日期:2008.7.1
Like most phosphonic acids, the recently discovered potent and selective thiazole phosphonic acid inhibitors of fructose 1,6-bisphosphatase (FBPase) exhibited low oral bioavailability (OBAV) and therefore required a prodrug to achieve oral efficacy. Syntheses of known phosphonate prodrugs did not afford the desired OBAV; hence, a new class of prodrugs was sought. Phosphonic diamides derived from amino
Aryl Substituted Indoles and Their Use as Blockers of Sodium Channels
申请人:Kyle Donald J.
公开号:US20130296281A1
公开(公告)日:2013-11-07
The invention relates to aryl and heteroaryl substituted compounds of Formula (I), and pharmaceutically acceptable salts, prodrugs, or solvates thereof, wherein G, R
1
, and Z
1
-Z
5
are defined as set forth in the specification. The invention is also directed to the use of compounds of Formula (I) to treat a disorder responsive to the blockade of sodium channels. Compounds of the present invention are especially useful for treating pain.
Site-Selective Modification of α-Amino Acids and Oligopeptides via Native Amine-Directed γ-C(sp<sup>3</sup>)-H Arylation
作者:Feipeng Yuan、Zhen-Lin Hou、Pranab K. Pramanick、Bo Yao
DOI:10.1021/acs.orglett.9b03607
日期:2019.12.6
Site-selective modification of chemically and biologically valuable α-aminoacids and peptides is of great importance for biochemical study and pharmaceutical development. Few methods based on remote C(sp3)-H functionalization of aliphatic side-chains of peptides has been disclosed in recent years. In this report, we developed a novel approach for γ-C(sp3)-H and γ-/δ-C(sp2)-H arylation of α-aminoacids with