PROTAC BET Degrader 1

PROTAC BET Degrader-1 is a potent BET degrader utilizing the PROTAC mechanism.

ARV-771 is an effective BET degrader based on PROTAC technology. The Kd for BRD2(1), BRD2(2), BRD3(1), BRD3(2), BRD4(1) and BRD4(2) are 34 and 4.7 respectively. , 8.3, 7.6, 9.6 and 7.6 nM.

BET-IN-6, a ligand with potent and high affinity for inhibiting BRD2 BRD4, plays a crucial role in the synthesis of PROTAC BRD2 BRD4 degrader-1 [1], targeting the protein BRD2 4.

(S,R,S)-AHPC-Me dihydrochloride, also known as VHL ligand 2 dihydrochloride, is a chemical compound used in the synthesis of ARV-771. ARV-771 is a BET PROTAC degrader that relies on von Hippel-Landau (VHL) E3 ligase and exhibits potent degradation of BET proteins in castration-resistant prostate cancer (CRPC) cells, with a DC50 of less than 1 nM. This compound acts as the VHL ligand, specifically the (S,R,S)-AHPC-based VHL ligand, facilitating the recruitment of von Hippel-Lindau (VHL) protein.

PROTAC BRD2 BRD4 degrader-1 (compound 15) is a potent, selective degrader of BET proteins BRD4 and BRD2, achieving rapid, reversible, and unexpectedly selective elimination compared to BRD3. It effectively suppresses solid tumors with minimal cytotoxic effects and comprises a BET inhibitor, a connecting linker, and thalidomide as the ligand for cereblon (CRBN) cullin 4A[1].

PROTAC BRD4 degrader for PAC-1 (compound 5) is a chimeric BET degrader GNE-987 conjugated with a disulfide-containing linker[1]. This PROTAC-linker conjugate specifically targets and degrades BRD4, enabling selective proteolysis of PAC-1.

Thalidomide-NH-C4-NH2 TFA (compound 29c) is a conjugate composed of an E3 ligase ligand-linker that integrates a Thalidomide-based cereblon ligand and a linker moiety. This compound is used as a component in PROTAC BRD2 BRD4 degrader-1, a highly potent and selective degrader targeting BET proteins BRD4 and BRD2[1].

Thalidomide-O-C6-NH2 TFA is a synthesized E3 ligase ligand-linker conjugate used in the PROTAC dTAG-13, a degrader of FKBP12F36V and BET[1].

Thalidomide-O-C6-NH2 is a synthesized E3 ligase ligand-linker conjugate used in the PROTAC dTAG-13, a degrader of FKBP12F36V and BET[1].

SJ44236 is a BET PROTAC degrader capable of degrading BRD2 (DC50 = 0.127 nM), BRD3, and BRD4. It shows cytotoxicity in MV4-11 and HD-MB03 cells with IC50 values of 0.12 nM and 0.92 nM, respectively. The compound downregulates c-Myc expression and upregulates p53 expression. In mice, SJ44236 demonstrates good oral bioavailability (45%). [Pink: ligand for target protein JQ-1 carboxylic acid; Black: linker; Blue: ligand for E3 ligaseCereblonE3ligaseLigand 54]

OARV-771, a VHL-based BET degrader (PROTAC) featuring enhanced cell permeability, demonstrates DC50 values of 6 nM for Brd4, 1 nM for Brd2, and 4 nM for Brd3, respectively [1].

(S,R,S)-AHPC-Me (E3 ligase Ligand 1A) (VHL ligand 2) is an (S,R,S)-AHPC-based VHL ligand used to recruit the von Hippel-Lindau (VHL) protein. It is utilized in the synthesis of ARV-771, a VHL E3 ligase-based BET PROTAC degrader that effectively degrades BET proteins in castration-resistant prostate cancer (CRPC) cells with a DC50 <1 nM.