2-Pyrazinecarboxamide, 3-[[4-[1-[[(3S)-1-[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-5-yl]-3-pyrrolidinyl]methyl]-4-piperidinyl]phenyl]amino]-5-(1-piperidinyl)-

Uses

NX-2127 (compound 28) is an orally active PROTAC deggrader, targeting to Bruton’s Tyrosine Kinase (Btk) . NX-2127 inhibits proliferation of BTKC481S mutant TMD8 cells, more effectively than Ibrutinib (HY-10997). NX-2127 catalyzes the degradation of Ikaros (IKZF1) and Aiolos (IKZF3) with of 25 nM and 54 nM, respectively. NX-2127 stimulates T cell activation and increases IL-2 production in primary human T Cells[1][2]. NX-2127 is composed of PROTAC target protein ligand (red part) BTK ligand 10 (HY-168302), E3 ligase ligand (blue part) Thalidomide 5-fluoride (HY-W087383) and PROTAC Linker (black part) (S)-4-(1-(Pyrrolidin-3-ylmethyl)piperidin-4-yl)aniline (HY-168303). Among which, the conjugate of E3 ubiquitin ligase ligand + Linker compose of Thalidomide-pyrrolidine-C-piperidine-Ph-NH2 (HY-168304).

in vivo

References

[1] Robbins D W, et al. Nx-2127, a degrader of BTK and IMiD neosubstrates, for the treatment of B-cell malignancies. Blood, 2020, 136: 34.
[2] Mato A, et al. A first-in-human phase 1 trial of NX-2127, a first-in-class oral BTK degrader with IMiD-like activity, in patients with relapsed and refractory B-cell malignancies. 2022.
[3] DANIEL W. ROBBINS, FREDERICK COHEN*   Discovery and Preclinical Pharmacology of NX-2127, an Orally Bioavailable Degrader of Bruton’s Tyrosine Kinase with Immunomodulatory Activity for the Treatment of Patients with B Cell Malignancies[J]. Journal of Medicinal Chemistry, 2024, 67 4: 2321-2336. DOI: 10.1021/acs.jmedchem.3c01007
[4] SKYE MONTOYA. Kinase-impaired BTK mutations are susceptible to clinical-stage BTK and IKZF1/3 degrader NX-2127[J]. Science, 2024, 383 6682. DOI: 10.1126/science.adi5798