5H-Pyrazolo[4,3-c]pyridine-5-carboxamide, 3-[7-(difluoromethyl)-3,4-dihydro-6-(1-methyl-1H-pyrazol-4-yl)-1(2H)-quinolinyl]-1-[1-[15-[[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-5-yl]amino]-1-oxo-4,7,10,13-tetraoxapentadec-1-yl]-4-piperidinyl]-1,4,6,7-tetrahydro-N-methyl-

dCBP-1 is a potent and selective heterobifunctional degrader of p300/CBP based on PROTAC. dCBP-1 is exceptionally potent at killing multiple myeloma cells and ablates oncogenic enhancer activity driving MYC expression[1]. dCBP-1 (10-1000 nM; 6 hours) treatment shows near-complete degradation of p300/CBP in MM1S cells. dCBP-1 is also able to induce near-complete p300/CBP degradation across other multiple myeloma cell lines tested, including MM1R, KMS-12-BM, and KMS34[1].Treatment of the human haploid cell line HAP1 for 6 h with dCBP-1 reveals almost complete loss of both CBP and p300 between 10 and 1000 nM doses. A time course analysis with 250 nM dCBP-1 revealed almost complete degradation of p300/CBP within an hour of treatment[1].

[1]. Raghu Vannam, et al. Targeted degradation of the enhancer lysine acetyltransferases CBP and p300. Cell Chem Biol. 2020 Dec 31;S2451-9456(20)30513-4.