Synthesis of the enantiomers of felodipine and determination of their absolute configuration
作者:Bo Lamm、Roger Simonsson、Staffan Sundell
DOI:10.1016/s0040-4039(01)93912-7
日期:1989.1
The pure enantiomers of felodipine, 1, have been synthesized by chromatographic separation of diastereomeric esters with (R)-1-(p-toluenesulfonyl)-3-trityloxypropan-2-ol, 3, as an easily removable chiral auxiliary. Absolute configurations have been deduced via X-ray crystallography on a (R)-mandelic acid ester, 9B.
非洛地平1的纯对映体是通过色谱分离非对映体酯与(R)-1-(对甲苯磺酰基)-3-三苯氧基氧基丙烷-2-醇3的分离而制得的,该化合物是易于除去的手性助剂。已经通过X射线晶体学在(R)-扁桃酸酯9B上推导了绝对构型。