Chemical aspects of metoprolol metabolism. Asymmetric synthesis and absolute configuration of the 3-[4-(1-hydroxy-2-methoxyethyl)phenoxy]-1-(isopropylamino)-2-propanols, the diastereomeric benzylic hydroxylation metabolites
作者:H. Umesha Shetty、Wendel L. Nelson
DOI:10.1021/jm00396a009
日期:1988.1
for the diastereomers. The absolute configurations 1'S,2S and 1'S,2R were assigned for the diastereomers formed in excess on the basis of reductions on closely related alkyl phenyl ketones and the circular dichroism spectrum. Derivatization of the 1'-hydroxyl group of oxazolidinone 10 with a chiral Mosher acid chloride and the use of an HPLC procedure to resolve the resulting esters enabled us to determine
描述了美托洛尔(1)的苄基羟化代谢产物3- [4-(1-羟基-2-甲氧基乙基)苯氧基] -1-(异丙氨基)-2-丙醇(2)的不对称合成,并描述了其绝对构型分配了非对映异构体。用(2S)-(-)-2-氨基-3-甲基-1,1-二苯基丁烷-1-醇(9)和硼烷的络合物将多步合成制得的酮3还原为2,非对映异构体的比例为82:18。过量构型的非对映异构体的绝对构型1'S,2S和1'S,2R基于紧密相关的烷基苯基酮的还原和圆二色性光谱而指定。1'的衍生化