BI-2852

• CAT Number: I018698
• CAS Number: 2375482-51-0
• Molecular Formula: C31H28N6O2
• Molecular Weight: 516.59
• Purity: ≥95%
• Synonyms: (3S)-5-hydroxy-3-[2-[[[1-[(1-methylimidazol-4-yl)methyl]indol-6-yl]methylamino]methyl]-1H-indol-3-yl]-2,3-dihydroisoindol-1-one
• InChI: InChI=1S/C31H28N6O2/c1-36-16-21(33-18-36)17-37-11-10-20-7-6-19(12-28(20)37)14-32-15-27-29(24-4-2-3-5-26(24)34-27)30-25-13-22(38)8-9-23(25)31(39)35-30/h2-13,16,18,30,32,34,38H,14-15,17H2,1H3,(H,35,39)/t30-/m0/s1
• InChIKey: JYEQLXOWWLNVDX-PMERELPUSA-N
• SMILES: CN1C=C(N=C1)CN2C=CC3=C2C=C(C=C3)CNCC4=C(C5=CC=CC=C5N4)C6C7=C(C=CC(=C7)O)C(=O)N6

BI-2852 is a KRAS inhibitor for the switch I/II pocket (SI/II-pocket) by structure-based agent design with nanomolar affinity. BI-2852 is mechanistically distinct from covalent KRASG12C inhibitor (binds to switch II pocket) and binds ten-fold more strongly to active KRASG12D versus KRASwt (740 nM vs 7.5 μM). BI-2852 blocks GEF, GAP, and effector interactions with KRAS, leading to inhibition of downstream signaling and an antiproliferative effect in KRAS mutant cells.
BI-2852 (Compound 1) (10 nM-10 μM; 2 hours) shows a dose-dependent pERK modulation and antiproliferative effect at EC50s of 5.8 μM and 6.7 μM in soft agar and low serum conditions in NCI-H358 cells[1].

Reference

[1]. Kessler D, et al. Drugging an undruggable pocket on KRAS. Proc Natl Acad Sci U S A. 2019 Aug 6; 116(32):15823-15829.
 [Content Brief]

[2]. Dirk Kessler, et al. Drugging all RAS isoforms with one pocket. FUTURE MEDICINAL CHEMISTRY