A new synthetic route to highly enantioenriched 3-substituted-2,3-dihydro-1H-isoindol-1-ones
作者:Eric Deniau、Dieter Enders、Axel Couture、Pierre Grandclaudon
DOI:10.1016/s0957-4166(03)00409-9
日期:2003.8
A concise and efficient synthesis of highly enantioenriched 3-alkyl and 3-aryl-2,3-dihydro-1H-isoindolinones is reported. The key step relies on the diastereoselective reduction of the N-acylhydrazonium salts generated by acidic treatment of hemiaminal precursors bearing the (S)-2-methoxymethylpyrrolidin-1-yl (SMP) auxiliary.
简明高效地合成了高度对映体富集的3-烷基和3-芳基-2,3-二氢-1 H-异吲哚满酮。关键步骤依赖于对带有(S)-2-甲氧基甲基吡咯烷-1-基(SMP)助剂的半胱氨酸前体进行酸性处理而生成的N-酰基hydr盐的非对映选择性还原。