A novel domino reaction for the preparation of substituted non-racemic β-proline derivatives
作者:Eric J. Gilbert、Andrew Brunskill、Jiaqiang Cai、Yaxian Cai、Xin-Jie Chu、Xing Dai、Jinsong Hao、Jeffrey T. Kuethe、Zhong Lai、Hong Liu、Cuizhi Mu、Yan Qi、Jack D. Scott、Brandon Taoka、Quang Truong、Shawn P. Walsh、Wen-Lian Wu、Jared N. Cumming
DOI:10.1016/j.tet.2016.08.017
日期:2016.10
A novel domino reaction for the preparation of non-racemic β-proline derivatives is reported. The addition of a methyl 2-(oxetan-3-yl)acetate titanium enolate to chiral tert-butanesulfinyl ketimines followed by an intramolecular oxetane ring-opening provides the highly-substituted pyrrolidine ring systems with three contiguous stereogenic centers.