A Chiral Pentafluorinated Isopropyl Group via Iodine(I)/(III) Catalysis
作者:Stephanie Meyer、Joel Häfliger、Michael Schäfer、John J. Molloy、Constantin G. Daniliuc、Ryan Gilmour
DOI:10.1002/anie.202015946
日期:2021.3.15
catalysis strategy to construct an enantioenriched fluorinated isostere of the iPr group is reported. The difluorination of readily accessible α‐CF3‐styrenes is enabled by the in situ generation of a chiral ArIF2 species to forge a stereocentre with the substituents F, CH2F and CF3 (up to 95 %, >20:1 vicinal:geminal difluorination). The replacement of the metabolically labile benzylic proton results
报道了构建 Pr 基团的对映体富集氟化等排体的 I(I)/(III) 催化策略。通过原位生成手性 ArIF 2物质,可实现易于接近的 α-CF 3 -苯乙烯的二氟化,从而与取代基 F、CH 2 F 和 CF 3形成立构中心(高达 95 %,>20:1邻位) :偕二氟化)。通过X射线晶体学(π→σ*和立体电子gauche σ→σ*相互作用)确定,代谢不稳定的苄基质子的替代产生了高度预组织的支架。公开了一种催化剂编辑方法,其中对映选择性的初步验证是建立在结构基础上的。
AMINOETHANOL DERIVATIVES
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1362846A1
公开(公告)日:2003-11-19
The present invention provides a pharmaceutical agent having cholesteryl ester transfer protein inhibitory action and useful as a blood lipid lowering agent and the like. The present invention relates to a compound represented by the formula
wherein Ar1 is an aromatic ring group optionally having substituents, Ar2 is an aromatic ring group having substituents, OR'' is an optionally protected hydroxyl group, R is an acyl group, R' is a hydrogen atom or a hydrocarbon group optionally having substituents, or a salt thereof, and a pharmaceutical composition containing a compound of the formula (I) or a salt thereof or a prodrug thereof.