KB02-COOH is a fragment of synthesis of ubiquitin E3 ligase ligand KB02. KB02 can be used in the synthesis of PROTAC, such as KB02-JQ1 and KB02-SLF [1].
[1]. Zhang X, et al. Electrophilic PROTACs that degrade nuclear proteins by engaging DCAF16. Nat Chem Biol. 2019 Jul;15(7):737-746.
















