[EN] M-AMIDINO PHENYL ANALOGS AS FACTOR Xa INHIBITORS<br/>[FR] ANALOGUES DU M-AMIDINO PHENYLE COMME INHIBITEURS DU FACTEUR Xa
申请人:THE DU PONT MERCK PHARMACEUTICAL COMPANY
公开号:WO1997030971A1
公开(公告)日:1997-08-28
(EN) The present application describes m-amidino phenyl analogs of formula (I), wherein D can be amidino and E can be phenyl, which are useful as inhibitors of factor Xa.(FR) La présente invention concerne des analogues du m-amidino phényle présentant la formule (I). Dans cette dernière, B peut être de l'amidino et E du phényle. Ces analogues constituent des inhibiteurs utiles du facteur Xa.
P(<i>i</i>-PrNCH<sub>2</sub>CH<sub>2</sub>)<sub>3</sub>N: Efficient Catalyst for Synthesizing β-Hydroxyesters and α,β-Unsaturated Esters using α-Trimethylsilylethylacetate (TMSEA)
作者:Kuldeep Wadhwa、John G. Verkade
DOI:10.1021/jo900477q
日期:2009.6.5
We present an efficient synthesis of β-hydroxyesters and α,β-unsaturatedesters via activation of the silicon−carbon bond of α-trimethylsilylethylacetate using catalytic amounts of the commercially available P(i-PrNCH2CH2)3N 1a. Selectivity for either of these two products can be achieved simply by altering the catalyst loading and reaction temperature to afford addition or stereoselective condensation
我们提出了通过使用催化量的市售P(i- PrNCH 2 CH 2)3 N 1a活化α-三甲基甲硅烷基乙酸乙酯的硅碳键来有效合成β-羟基酯和α,β-不饱和酯的方法。通过改变催化剂的加入量和反应温度以提供加成或立体选择性缩合,可以简单地实现对这两种产物中任一种的选择性。这种方法比较温和,可以耐受各种各样的官能团。