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].

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.

PROTAC PTP1B degrader 1 (compound 75) is a CRBN-based PTP1B PROTAC degrader with DC50 values of 0.2 μM at 48 hours and 0.05 μM at 72 hours.

MS181 (compound 1) is an efficient PROTAC degrader that recruits cereblon (CRBN) and binds to the ubiquitin complex polycomb repressive complex 1 (PRC1). It reduces the expression of EED, EZH2, SUZ12, BMI1, and RING1B, and exhibits antiproliferative activity.

PROTACPD-L1 degrader-1 is a CRBN-based PD-L1-PROTAC degrader with significant PD-L1 protein degradation capacity. It demonstrates strong PD-L1 degradation activity in 4T1 cells, with a DC50 of 0.609 μM. This compound is applicable to breast cancer research.

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.