Highly Reactive and Tracelessly Cleavable Cysteine‐Specific Modification of Proteins via 4‐Substituted Cyclopentenone
作者:Jian Yu、Xiaoyue Yang、Yang Sun、Zheng Yin
DOI:10.1002/anie.201804801
日期:2018.9.3
A rapid and cysteine‐specificmodification of proteins using 4‐substitutedcyclopentenonevia a Michael addition tandem elimination reaction was developed. Compared to the classical method, this reaction featured fast kinetics with a stable product. More importantly, this conjugation could be tracelessly removed by exchange with a Michael addition donor. The conjugation and regeneration process not
Developing Molecular Diversity in the Construction of a Family of Bicyclic Isoxazolines Scaffolds: Control of Regio-and Diastereoselectivities
作者:Gianluca Giorgi、L. Raffaella Lampariello、Giacomo Minetto、M. Laura Paoli、Vincenzo Riello、Manuela Rodriquez、Alessandro Sega
DOI:10.1002/ejoc.200300480
日期:2003.12
regioselective approach to bicyclicisoxazolines has been found starting from 4-cyclopentene-1,3-dione or 2-cyclopentenones. 1,3-Dipolar cycloaddition with nitrile oxides gave different semirigid bicyclicscaffolds with at least four points of elaboration for moleculardiversity. From these intermediates, two families of regioisomer isoxazolines can be prepared with complete control of their relative stereochemistry