AV-412 free base

• CAT Number: I003591
• CAS Number: 451492-95-8
• Molecular Formula: C27H28ClFN6O
• Molecular Weight: 507.00
• Purity: ≥95%
• Synonyms: N-[4-(3-chloro-4-fluoroanilino)-7-[3-methyl-3-(4-methylpiperazin-1-yl)but-1-ynyl]quinazolin-6-yl]prop-2-enamide
• InChI: InChI=1S/C27H28ClFN6O/c1-5-25(36)33-23-16-20-24(30-17-31-26(20)32-19-6-7-22(29)21(28)15-19)14-18(23)8-9-27(2,3)35-12-10-34(4)11-13-35/h5-7,14-17H,1,10-13H2,2-4H3,(H,33,36)(H,30,31,32)
• InChIKey: ZAJXXUDARPGGOC-UHFFFAOYSA-N
• SMILES: CC(C)(C#CC1=CC2=C(C=C1NC(=O)C=C)C(=NC=N2)NC3=CC(=C(C=C3)F)Cl)N4CCN(CC4)C

AV-412 free base (MP-412 free base) is an EGFR inhibitor with IC50s of 0.75, 0.5, 0.79, 2.3, 19 nM for EGFR, EGFRL858R, EGFRT790M, EGFRL858R/T790M and ErbB2, respectively.
AV-412 inhibits autophosphorylation of EGFR and ErbB2 with IC50 of 43 and 282 nM, respectively. AV-412 also inhibits epidermal growth factor (EGF)-dependent cell proliferation with an IC50 of 100 nM. AV-412 abrogates EGFR signaling in the gefitinib-resistant H1975 cell line, which harbors a double mutation of L858R and T790M in EGFR[1].
In animal studies using cancer xenograft models, AV-412 (30 mg/kg) demonstrates complete inhibition of tumor growth of the A431 and BT-474 cell lines, which overexpress EGFR and ErbB2, respectively. AV-412 suppresses autophosphorylation of EGFR and ErbB2 at the dose corresponding to its antitumor efficacy. When various dosing schedules are applied, AV-412 shows significant effects with daily and every-other-day schedules, but not with a once-weekly schedule, suggesting that frequent dosing is preferable for this compound. Furthermore, AV-412 shows a significant antitumor effect on the ErbB2-overexpressing breast cancer KPL-4 cell line, which is resistant to gefitinib[1].

Reference

[1]. Suzuki T, et al. Pharmacological characterization of MP-412 (AV-412), a dual epidermal growth factor receptorand ErbB2 tyrosine kinase inhibitor. Cancer Sci. 2007 Dec;98(12):1977-84.