Theliatinib

• CAT Number: I011856
• CAS Number: 1353644-70-8
• Molecular Formula: C25H26N6O2
• Molecular Weight: 442.51
• Purity: ≥95%
• Synonyms: (3aR,6aR)-N-[4-(3-ethynylanilino)-7-methoxyquinazolin-6-yl]-1-methyl-2,3,3a,4,6,6a-hexahydropyrrolo[2,3-c]pyrrole-5-carboxamide
• InChI: InChI=1S/C25H26N6O2/c1-4-16-6-5-7-18(10-16)28-24-19-11-21(23(33-3)12-20(19)26-15-27-24)29-25(32)31-13-17-8-9-30(2)22(17)14-31/h1,5-7,10-12,15,17,22H,8-9,13-14H2,2-3H3,(H,29,32)(H,26,27,28)/t17-,22+/m1/s1
• InChIKey: FSXCKIBROURMFT-VGSWGCGISA-N
• SMILES: CN1CCC2C1CN(C2)C(=O)NC3=C(C=C4C(=C3)C(=NC=N4)NC5=CC=CC(=C5)C#C)OC

Theliatinib (Xiliertinib) is a potent, ATP-competitive, orally active and highly selective EGFR inhibitor with a Ki of 0.05 nM and an IC50 of 3 nM. Theliatinib has an IC50 of 22 nM for EGFR T790M/L858R mutant. Theliatinib shows >50-fold selectivity for EGFR than other kinases[1]. Theliatinib is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
Theliatinib significantly inhibits EGFR phosphorylation in A431 cells with an IC50 of 7 nM. Theliatinib also inhibits A431, H292 and FaDu cells survival with IC50 values of 80 nM, 58 nM and 354 nM, respectively[1].
Theliatinib (2-15 mg/kg; oral administration;daily; for 21 days; NOD-SCID mice; PDECX 1T0950 model) treatment demonstrates tumor regression of 75% at the end of study, and with a dose response[1].

Reference

[1]. Ren Y, et al. Anti-tumor efficacy of theliatinib in esophageal cancer patient-derived xenografts models with epidermal growth factor receptor (EGFR) overexpression and gene amplification. Oncotarget. 2017 Apr 19;8(31):50832-50844.
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