作者:Johann Mulzer、Doris Riether
DOI:10.1021/ol006337n
日期:2000.10.1
The synthesis of a highly functionalized 4,5-dihydro-3H-pyrrol, namely, the D-ring fragment 5a of cobyric acid (1), is described in this letter. A very efficient assembly to 5a involves CBS-reduction of 10, a [2,3] Wittig-Still rearrangement, and a stereoselective Michael addition to a nitro olefin.
在这封信中描述了高度官能化的4,5-二氢-3H-吡咯,即cobyric acid(1)的D环片段5a的合成。到5a的非常有效的组装涉及CBS还原10,[2,3] Wittig-Still重排以及向硝基烯烃的立体选择性Michael加成。