Aurigene Oncology Ltd. and Olema Pharmaceuticals Inc. have disclosed new proteolysis targeting chimera (PROTAC) compounds comprising an E3 ubiquitin ligase CBL-B (CBLB)-binding moiety coupled to a histone acetyltransferase KAT6A (MOZ; MYST-3)-targeting moiety. They are described as potentially useful for the treatment of cancer.