A Tandem Organocatalytic α-Chlorination–Aldol Reaction That Proceeds with Dynamic Kinetic Resolution: A Powerful Tool for Carbohydrate Synthesis
摘要:
A tandem, proline-catalyzed alpha-chlorination/aldol reaction is described that involves a dynamic kinetic resolution of alpha-chloroaldehyde intermediates. The resulting syn-chlorohydrins are produced with good to excellent diastereoselectivity in high enantiopurity and provide new opportunities for the synthesis of carbohydrates.
A Tandem Organocatalytic α-Chlorination–Aldol Reaction That Proceeds with Dynamic Kinetic Resolution: A Powerful Tool for Carbohydrate Synthesis
摘要:
A tandem, proline-catalyzed alpha-chlorination/aldol reaction is described that involves a dynamic kinetic resolution of alpha-chloroaldehyde intermediates. The resulting syn-chlorohydrins are produced with good to excellent diastereoselectivity in high enantiopurity and provide new opportunities for the synthesis of carbohydrates.
sp3‐Rich Heterocycle Synthesis on DNA: Application to DNA‐Encoded Library Production
作者:Felix Gruber、Anthony W. McDonagh、Victoria Rose、James Hunter、Laura Guasch、Rainer E. Martin、Stefanie N. Geigle、Robert Britton
DOI:10.1002/anie.202319836
日期:2024.3.18
C(sp3)-rich mono- and bicyclic heterocycles can be assembled on DNA from readily available ketochlorohydrins through a reductive amination and cyclization process. The resulting hydroxypyrrolidine-containing DNA encoded libraries occupy a unique region of pharmaceutically relevant chemical space.
富含 C(sp 3 ) 的单环和双环杂环可以通过还原胺化和环化过程从容易获得的酮氯醇组装到 DNA 上。由此产生的含有羟基吡咯烷的 DNA 编码文库占据了药物相关化学空间的独特区域。