PROTAC CRBN Degrader 1

PROTAC CRBN Degrader-1 is a chemical compound consisting of a cereblon (CRBN) ligand binding group, a linker, and a von Hippel-Landau (VHL) binding group. It functions as a cereblon (CRBN) degrader[1].

Thalidomide 4-fluoride (E3 ligase Ligand 4) (Cereblon ligand 4) is the Thalidomide-based Cereblon ligand. Thalidomide 4-fluoride can be used in the recruitment of CRBN protein. Thalidomide 4-fluoride (Cereblon ligand 4) can be connected to the ligand for IRAK4 protein by a linker to form PROTAC IRAK4 degrader-1.

Desmorpholinyl Navitoclax-NH-Me (Desmorpholinyl ABT-263-NH-Me) is a Bcl-xL inhibitor, which can be employed alongside a CRBN ligand to synthesize XZ739, a PROTAC BCL-XL degrader [1] [2].

PROTAC Mcl1 degrader-1 is a Cereblon ligand-based targeted chimeric protein degrader (PROTAC), a selective Mcl-1 inhibitor. By hijacking the CRBN ubiquitin ligase to form a ternary complex with the target protein, it induces Mcl-1 ubiquitination. It can be used for cancer research.

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

Homo-PROTAC cereblon degrader 1 is a highly potent and efficient cereblon (CRBN) degrader with only minimal effects on IKZF1 and IKZF3.

PROTAC CDK9 degrader-2 (compounds 11c) is a potent and selective CDK9 degrader based on PROTAC, with an IC50 of 17 μM in MCF-7 cell lines. Natural product Wogonin binds ubiquitin E3 ligase cereblon (CRBN) via a linker to form PROTAC[1].

K-Ras ligand-Linker Conjugate 1 is a chemical compound that includes a ligand for K-Ras and a PROTAC linker, facilitating the recruitment of E3 ligases VHL, CRBN, MDM2, and IAP. It can be utilized in the synthesis of PROTAC K-Ras Degrader-1, a highly effective K-Ras degrader that achieves ≥70% degradation efficacy in SW1573 cells [1].

K-Ras ligand-Linker Conjugate 2 is a chemical compound that includes a ligand for K-Ras and a PROTAC linker, capable of recruiting E3 ligases like VHL, CRBN, MDM2, and IAP. It is utilized in synthesizing PROTAC K-Ras Degrader-1, a highly effective PROTAC K-Ras degrader with a degradation efficacy of ≥70% in SW1573 cells[1].

K-Ras ligand-Linker Conjugate 3 (Compound 001371) is a chemical compound comprising a ligand for the K-Ras recruiting moiety and a PROTAC linker, responsible for recruiting E3 ligases (e.g., VHL, CRBN, MDM2, and IAP). This compound is essential for synthesizing PROTAC K-Ras Degrader-1, a potent degrader with a degradation efficacy of ≥70% in SW1573 cells[1].

K-Ras ligand-Linker Conjugate 4 is a chemical compound combining a K-Ras recruiting ligand with a PROTAC linker, responsible for recruiting E3 ligases such as VHL, CRBN, MDM2, and IAP. It has the potential to be used in synthesizing PROTAC K-Ras Degrader-1, which shows a degradation efficacy of ≥70% in SW1573 cells[1].

K-Ras ligand-Linker Conjugate 5 is a chemical compound combining a K-Ras recruiting ligand with a PROTAC linker for E3 ligases, such as VHL, CRBN, MDM2, and IAP. This conjugate is crucial for synthesizing PROTAC K-Ras Degrader-1, displaying a degradation efficacy of ≥70% in SW1573 cells [1].

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].

TD-165, a PROTAC-based cereblon (CRBN) degrader, consists of a cereblon (CRBN) ligand-binding group, a linker, and a von Hippel-Landau (VHL) binding group[1].

Thalidomide-C2-amido-C2-COOH is a compound that includes a CRBN ligand for the E3 ubiquitin ligase, as well as a linker. It is utilized in the development of PROTAC CDK2 9 Degrader-1[1].

JQ dS-4 is a degrader of Brahma-related gene 1 (BRG1) BRM SMARCA4 (PROTAC®; DC50 range = 9 - 390 nM in glioma models and cell lines), featuring a BRG1 inhibitor connected through a linker to a cereblon (CRBN) E3 ligase ligand. It effectively degrades BRG1 completely over 48 and 72 hours in HSJD-DIPG007 and SU-DIPGXIIIP cells. Additionally, it lessens the viability of various cancer cell lines, including those of H3K27M glioma, prostate, thyroid, and salivary gland.

PROTAC TRIB2 degrader-1 (Compound 5k) is a potent TRIB2 degrader that selectively induces TRIB2 degradation via the CRBN-dependent ubiquitin-proteasome pathway. It effectively inhibits cell proliferation and induces cell apoptosis (apoptosis), making it useful in cancer research.

PROTAC JNK1-targeted-1 (PA2) is a JNK1 PROTAC degrader with a DC50 of 10 nM. It effectively reduces fibronectin levels and is useful in lung fibrosis research. [Pink: JNK1 inhibitor; Black: linker; Blue: CRBN Ligand]

PROTAC CARM1 IKZF3 degrader-1 (Compound 074) inhibits CARM1, reducing the methylation level of its substrate BAF155. This PROTAC degrader works by degrading IKZF 1 3 via a CRBN-dependent mechanism. It suppresses MYC protein expression, thereby inhibiting the proliferation of various multiple myeloma cells. Additionally, PROTAC CARM1 IKZF3 degrader-1 can induce apoptosis in H929 cells and overcomes resistance to immunomodulatory drugs (IMiDs, such as pomalidomide). It is applicable for cancer and immunology research. (Pink: ligand for target protein CARM1 IKZF3 ligand 1; Active form of target protein ligand: EZM 2302; Black: linker; Blue: ligand for E3 ligase Cereblon Thalidomide 4-fluoride)

ROR1ligand-1 (9-1) serves as the ligand for PROTAC ROR1 degrader-1. By linking with ligands of either the VHL type or CRBN, the first selective and efficient ROR1 PROTAC molecule was designed and synthesized.

PROTAC FGFR1 degrader-1 (compound S2H) is a targeted degrader of FGFR1, demonstrating an IC50 of 26.81 nM and a DC50 of 39.78 nM in KG1a cells. This compound is composed of a CRBN-type E3 ligase ligand (blue part) Pomalidomide, a target protein ligand (red part) FGFR1ligand-1, and a PROTAC linker (black part) 9-Bromononanoic acid, together forming the conjugate E3LigaseLigand-linker Conjugate 164.

CDK9 Antagonist-1 (compounds 11c) is a potent and selective CDK9 degrader based on PROTAC, with an IC50 of 17 μM in MCF-7 cell lines. Natural product Wogonin binds ubiquitin E3 ligase cereblon (CRBN) via a linker to form PROTAC[1]. CDK9|17 μM (IC50, MCF-7 cells) [1]. Bian J , et al. Discovery of Wogonin-based PROTACs against CDK9 and capable of achieving antitumor activity. Bioorg Chem. 2018 Dec;81:373-381.

LSN3106729 hydrochloride, the metabolite of Abemaciclib , is a CDK inhibitor with antitumor activity. LSN3106729 hydrochloride and a CRBN ligand have been used to design PROTAC CDK4 6 degrader[1]. [1]. Edward S. Kim, et al. Abemaciclib in Combination with Single-Agent Options in Patients with Stage IV Non-Small Cell Lung Cancer: A Phase Ib Study. [2]. Nathanael Gray, et al. Degradation of cyclin-dependent kinase 4 6 (cdk4 6) by conjugation of cdk4 6 inhibitors with e3 ligase ligand and methods of use. WO2017185031A1.

PROTAC IDO1 Degrader-1, a pioneering compound, efficiently targets indoleamine 2,3-dioxygenase 1 (IDO1) for ubiquitination and degradation by recruiting IDO1 to the CRBN E3 ligase, thereby facilitating its entry into the ubiquitin-proteasome system (UPS) with a DC50 of 2.84 μM. This compound also moderately enhances the tumor-killing efficacy of HER2 CAR-T cells[1].