PROTAC-O4I2

• CAT Number: I045227
• CAS Number: 2785323-62-6
• Molecular Formula: C29H29ClN6O5S
• Molecular Weight: 609.10
• Purity: ≥95%
• Synonyms: 2-(4-chloroanilino)-N-[6-[[2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindol-4-yl]amino]hexyl]-1,3-thiazole-4-carboxamide
• InChI: InChI=1S/C29H29ClN6O5S/c30-17-8-10-18(11-9-17)33-29-34-21(16-42-29)25(38)32-15-4-2-1-3-14-31-20-7-5-6-19-24(20)28(41)36(27(19)40)22-12-13-23(37)35-26(22)39/h5-11,16,22,31H,1-4,12-15H2,(H,32,38)(H,33,34)(H,35,37,39)
• InChIKey: UWYLVQJEOCYCEW-UHFFFAOYSA-N
• SMILES: C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)NCCCCCCNC(=O)C4=CSC(=N4)NC5=CC=C(C=C5)Cl

PROTAC-O4I2 is a PROTAC targets splicing factor 3B1 (SF3B1). PROTAC-O4I2 induces FLAG-SF3B1 degradation with an IC50 value of 0.244 μM in K562 cells. PROTAC-O4I2 also induces cellular apoptosis in K562 WT cells[1].
PROTAC-O4I2 introduces Thalidomide to ubiquitin E3 ligase cereblon (CRBN), which selectively degrades SF3B1 and inhibits tumor growth in cells[1].
PROTAC-O4I2 degrades and inhibits SF3B1 in K562 cells. PROTAC-O4I2 exhibits anti-proliferation effects on SF3B1 WT, SF3B1 OE, and SF3B1 K700E cells with IC50s of 228, 63, and 90 nM, respectively[1].
PROTAC-O4I2 induces FLAG-SF3B1 degradation in a concentration-dependent manner with a half maximal inhibitory concentration (IC50) value of 0.244 μM in K562 cells[1].
PROTAC-O4I2 (10 μM) significantly increases survival by interference with the maintenance and proliferation of tumor in a Drosophila intestinal tumor model[1].

Reference

[1]. Rodrigo A Gama-Brambila, et al. A PROTAC targets splicing factor 3B1. Cell Chem Biol. 2021 Nov 18;28(11):1616-1627.e8.
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