protac brd4 degrader 1

PROTAC BRD4 Degrader-1 is an efficacious degrader of BRD4(BRD4 BD1,IC50 of 41.8 nM).

PROTAC BRD2 BRD4 degrader-1 (compound 15) serves as a potent, selective degrader of BET proteins BRD4 and BRD2, achieving rapid, reversible, and unexpectedly selective elimination of BRD4 and BRD2 compared to BRD3. Its efficacy in suppressing solid tumors manifest with minimal cytotoxic effects. This compound 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.

PROTACBRD4Degrader-11 (compound 9a) 是一种有效的由von Hippel-Lindau 配体和BRD4配体相连的PROTAC。PROTACBRD4Degrader-11 可与 STEAP1 和 CLL1 抗体偶联从而降解 PC3 前列腺癌细胞中的BRD4蛋白，DC50值分别为 0.23 nM 和 0.38 nM。

PROTACBRD4Degrader-12 (compound 9c) 是一种由 von Hippel-Lindau 配体和 BRD4配体相连的 PROTAC。PROTACBRD4Degrader-12 可与 STEAP1 和 CLL1 抗体偶联从而降解 PC3 前列腺癌细胞中的 BRD4蛋白，DC50值分别为 0.39 nM 和 0.24 nM。

PROTACBRD4Degrader-14 是一种由 von Hippel-Lindau 配体和 BRD4配体相连的 PROTAC，对 BRD4BD1和 BD2的 IC50值分别为 1.8 nM 和 1.7 nM。PROTACBRD4Degrader-14 能够有效降解 PC3 前列腺癌细胞中的 BRD4蛋白。

PROTACBRD4 Degrader-19 (化合物 176)，一种针对BRD4蛋白的PROTAC，具有可靶向降解BRD4蛋白的特性，主要应用于癌症研究。

PROTACBRD4Degrader-16是一种高效的PROTAC BRD4降解剂，具有对BRD4(BD1)和BRD4(BD2)分别为34.58 nM及40.23 nM的IC50值。该化合物有效抑制G2 M阶段细胞周期蛋白B1（Cyclin B1）的表达，并显著诱导MV-4-11细胞的细胞凋亡（apoptosis）。

PROTAC BRD4 Degrader-10, also known as compound 8b, is a dual ligand-based PROTAC that combines ligands for von Hippel-Lindau and BRD4. To degrade the BRD4 protein in PC3 prostate cancer cells, PROTAC BRD4 Degrader-10 can be conjugated with STEAP1 and CLL1 antibodies, with respective DC 50 values of 1.3 nM and 18 nM.

PROTAC BRD4 Degrader-15 is a chemical compound consisting of a PROteolysis TArgeting Chimera (PROTAC) linked to ligands specific to von Hippel-Lindau and BRD4. It exhibits an IC50 of 7.2 nM for BRD4 BD1 and 8.1 nM for BRD4 BD2. Additionally, PROTAC BRD4 Degrader-15 demonstrates potent degradation activity against the BRD4 protein in PC3 prostate cancer cells.

PROTAC BRD4 Degrader-13 (compound 9d) is a bioactive compound that functions as a proteolysis targeting chimera (PROTAC), linking ligands for von Hippel-Lindau and BRD4 proteins. In the context of PC3 prostate cancer cells, this compound effectively degrades the BRD4 protein through conjugation with STEAP1 and CLL1 antibodies. The degradation of BRD4 protein is achieved with remarkable potency, exhibiting a DC 50 of 0.025 nM and 6.0 nM when combined with STEAP1 and CLL1 antibodies, respectively.

ARV-771 是基于 PROTAC 技术的有效 BET 降解剂，对 BRD2(1)、BRD2(2)、BRD3(1)、BRD3(2)、BRD4 (1) 和 BRD4(2)的 Kd 分别为 34、4.7、8.3、7.6、9.6 和 7.6 nM。

BET-IN-6 是一种有效且高亲和力的BRD2 BRD4抑制剂。BET-IN-6 是靶蛋白 BRD2 4 的配体，可用于合成 PROTAC BRD2 BRD4 degrader-1 。

PROTAC BRD9 Degrader-1 is a leading PROTAC BRD9 chemical degrader with an IC50 of 13.5 nM.

Azido-PEG1-CH2CO2H 是属于 alkyl ether 类的PROTAC linker，可用于合成 PROTAC BRD4 Degrader-1.

Azido-PEG1-CH2COO-Cl (compound 43a) is an alkyl ether-based PROTAC linker, commonly employed in the synthesis of PROTAC BRD4 Degrader-1[1].

Lenalidomide-PEG1-azide is an E3 ligase ligand-linker conjugate that incorporates the cereblon ligand based on Lenalidomide and a linker. It is designed for use in the development of PROTAC BRD4 Degrader-2[1].

Pomalidomide-PEG1-azide is an E3 ligase ligand-linker conjugate that combines the cereblon ligand based on Pomalidomide with a linker. This compound is instrumental in designing PROTAC BRD4 Degrader-1[1].

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

PROTAC BRD4-DCAF1 degrader-1 (I-907) 作为一种有效的BRD4-DCAF1 PROTAC降解剂，其DC50值介于10~100 nM之间。

SJ46421为一种基于(+)-JQ-1的KLHDC2PROTAC蛋白降解剂。该化合物能够有效促进与KLHDC2形成较稳定的三元复合物，具有7.8 nM的IC50值。此外，SJ46421还可促进BRD2、BRD3或BRD4的BD2结构域发生多泛素化。

JQ-1 (carboxylic acid)-NH-C2-NH-AMPRO-222 是一种包含BRD4的配体与PROTAC接头的化合物，可用于合成PROTACBRD4 Degrader-29。

SJ44236 是一种BET的PROTAC降解剂，能够降解BRD2(DC50= 0.127 nM)、BRD3和BRD4。在细胞 MV4-11 和 HD-MB03 中，SJ44236 的细胞毒性IC50分别是 0.12 nM 和 0.92 nM。该化合物下调c-Myc的表达，同时上调p53。SJ44236 在小鼠体内具有良好的口服生物利用度（45%）。(Pink: ligand for target protein JQ-1 carboxylic acid; Black: linker; Blue: ligand for E3 ligaseCereblonE3ligaseLigand 54)

PROTAC BRD4 Degrader-8 is a potent BRD4 inhibitor, with IC50s of 1.1 nM and 1.4 nM for BRD4 BD1 and BD2, respectively. PROTAC BRD4 Degrader-8 is capable of potently degrading the BRD4 protein in PC3 prostate cancer cells[1]. PROTAC BRD4 Degrader-8 (compound 8; 6 days) inhibits the proliferation of PC3 prostate cancer cells, with an IC50 of 28 nM[1].PROTAC BRD4 Degrader-8 (4 h) suppresses MYC gene transcript in MV4-11 AML cells, with an IC50 of 11 nM[1].PROTAC BRD4 Degrader-8 (4 h) potently degrades the BRD4 protein in PC3 prostate cancer cells, with an DC50 of 7.5 nM[1]. [1]. Dragovich PS, et, al. Antibody-Mediated Delivery of Chimeric BRD4 Degraders. Part 2: Improvement of In Vitro Antiproliferation Activity and In Vivo Antitumor Efficacy. J Med Chem. 2021 Mar 11;64(5):2576-2607.