Molecular Formula | C25H26N6O2 |
Molar Mass | 442.51 |
Storage Condition | 2-8℃ |
In vitro study | Compared with erlotinib or gefitnib,theliatinib has a stronger binding affinity with wild-type EGFR and is more difficult to be replaced by ATP, which makes theliatinib have a better target binding effect, stronger antitumor activity in tumors with wild-type EGFR activation. In A431 cells, theliatinib inhibited phosphorylation of EGFR with an IC50 of 0.007 μm; In tumor cells A431, H292, FaDu cells with wild-type EGFR, it inhibited cell survival. |
In vivo study | In several patient-derived esophageal cancer xenograft models, Theliatinib has concentration-dependent antitumor activity. However, abnormal activation or gene mutation of other targets such as PI3K and FGFR can weaken the anti-tumor activity of EGFR inhibitors, especially theliatinib. |
biological activity | thelitinib (HMPL-309) is a highly potent EGFR inhibitor with a Ki value of 0.05 nM for EGFR, the IC50 values for EGFR and EGFR T790M/L858R mutant were 3 nM and 22 nM, respectively. It is 50 times more selective for EGFR than the other 72 kinases. |
Target | Value |
WT EGFR (Cell-free assay) | 3 nM |
EGFR T790M/L858R (Cell-free assay) | 22 nM |