thalidomide 4 fluoride

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.

XYD049 (compound 7d) is a CRBN-type molecular glue targeting GSPT1, with a DC50 of 19 nM, used for researching MYC-driven castration-resistant prostate cancer (CRPC). It effectively inhibits the growth of 22Rv1 cells (IC50 = 7 nM) and exhibits antitumor efficacy in vivo. XYD049 downregulates CRPC-associated oncogenes in 22Rv1 cells, including AR, AR-v7, PSA, and c-Myc. XYD049 comprises a molecular glue linker (black part) NH2-C5-NH-Boc, a CRBN-type E3 ligase ligand (blue part) Thalidomide 4-fluoride, and a target protein ligand (red part) GSPT1 ligand-1, with the E3 ligase ligand + linker forming the conjugate E3 Ligase Ligand-linker Conjugate 158.

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)

PT-129 is a RPOTAC degrader that targets the G3BP1 2NTF2 domain (protein-RNA interaction site), facilitating the breakdown of intracellular stress granules. It prevents the formation of stress granules in stressed cells and deconstructs existing ones, thereby disrupting ATF4 transmission and inhibiting cancer cell proliferation. Stress granules (SGs) are membraneless cytoplasmic compartments formed under stress, which aid in the transfer of ATF4 from fibroblasts to tumor cells, promoting fibroblast-related tumor growth. G3BP1 2 serve as central proteins in the SG network, and inhibiting them may reduce the stress resilience of cancer cells within the tumor microenvironment. PT-129 consists of a target protein ligand (red part) G3BP1 2-Targeting ligand-1, an E3 ligase ligand (blue part) Thalidomide 4-fluoride, and a PROTAC linker (black part) Amino-PEG3-C2-acid; the E3 ligase ligand and linker form the complex Thalidomide-NH-PEG3-propionic acid.