SB1-G-187, a PROTAC, is a multi-kinase degrader[1]. SB1-G-187 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
References
[1] Katherine A Donovan, et al. Mapping the Degradable Kinome Provides a Resource for Expedited Degrader Development. Cell. 2020 Dec 10;183(6):1714-1731.e10. DOI:10.1016/j.cell.2020.10.038