Improved Asymmetric Synthesis of 3,4-Dihydro-2-[3-(1,1,2,2-tetrafluoroethoxy)phenyl]-5-[3-(trifluoromethoxy)phenyl]-α-(trifluoromethyl)-1(2<i>H</i>)-quinolineethanol, a Potent Cholesteryl Ester Transfer Protein Inhibitor
作者:Thomas A. Rano、Gee-Hong Kuo
DOI:10.1021/ol900639j
日期:2009.7.2
The asymmetric synthesis of 3,4-dihydro-2-[3-(1,1,2,2-tetrafluoroethoxy)phenyl]-5-[3-(trifluoromethoxy)phenyl]-α-(trifluoromethyl)-1(2H)-quinolineethanol (compound 11), a cholesteryl ester transfer protein inhibitor, is accomplished. The asymmetric center is established via the chiral reduction of ketone 4 employing Corey’s (R)-Me CBS oxazaborolidine reagent. The tetrahydroquinoline core of the molecule
3,4-二氢-2- [3-(1,1,2,2-四氟乙氧基)苯基] -5- [3-(三氟甲氧基)苯基]-α-(三氟甲基)-1(2 H的不对称合成完成了胆甾醇酯转移蛋白抑制剂)-喹啉乙醇(化合物11)的制备。不对称中心是通过手性还原酮的既定4采用科里的(- [R)-Me CBS恶唑硼烷试剂。分子的四氢喹啉核心是通过Cu介导的分子内胺化反应建立的。通过消除使用有害的芳基锡试剂,前手性酮4的制备也得到了改善。