Acylazetine as a Dienophile in Bioorthogonal Inverse Electron-Demand Diels–Alder Ligation
作者:Sander B. Engelsma、Lianne I. Willems、Claudia E. van Paaschen、Sander I. van Kasteren、Gijsbert A. van der Marel、Herman S. Overkleeft、Dmitri V. Filippov
DOI:10.1021/ol501049c
日期:2014.5.16
conjugation, is developed. The tag is small and achiral. We demonstrate the usefulness of N-acylazetine-tetrazine based bioorthogonal chemistry in two-step activity-based protein profiling. The performance of the new tetrazinophile in the labeling of catalytically active proteasome subunits was comparable to that of the more sterically demanding norbornene tag.
开发了一种新的生物正交N-酰基腺苷标记,适用于四嗪介导的电子逆Diels-Alder共轭逆反应。标签很小且非手性。我们展示了基于两步活动的基于蛋白质的蛋白质分析中基于N-酰基la丁嗪-四嗪的生物正交化学的有用性。在催化活性的蛋白酶体亚基标记中,新的四嗪亲和剂的性能与空间要求更高的降冰片烯标签的性能相当。