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SOS1-IN-21 is an orally active inhibitor of son of Sevenless 1 (SOS1) with an IC50 value of 15 nM. As a guanine nucleotide exchange factor (GEF), SOS1 activates KRAS by facilitating the conversion of GDP to GTP. SOS1-IN-21 demonstrates potent antiproliferative activity, with IC50 values of 16 nM for NCI-H358 cells and 17 nM for Mia Paca-2 cells. It exhibits significant antitumor activity in Mia Paca-2 xenograft models and is useful for researching KRAS-mutated tumors, such as pancreatic cancer.


| Description | SOS1-IN-21 is an orally active inhibitor of son of Sevenless 1 (SOS1) with an IC50 value of 15 nM. As a guanine nucleotide exchange factor (GEF), SOS1 activates KRAS by facilitating the conversion of GDP to GTP. SOS1-IN-21 demonstrates potent antiproliferative activity, with IC50 values of 16 nM for NCI-H358 cells and 17 nM for Mia Paca-2 cells. It exhibits significant antitumor activity in Mia Paca-2 xenograft models and is useful for researching KRAS-mutated tumors, such as pancreatic cancer. |
| In vitro | SOS1-IN-21 (Compound 21), when used in concentrations ranging from 0 to 3000 nM, significantly enhances the growth inhibitory effect on Mia PaCa-2 cells when combined with the KRASG12C inhibitor AMG510. |
| In vivo | Administered twice daily for 23 days at a dosage of 12-25 mg/kg orally, SOS1-IN-21 (Compound 21) significantly inhibited tumor growth in the Mia PaCa-2 xenograft model and demonstrated enhanced efficacy when combined with AMG510. |
| Molecular Weight | 493.52 |
| Formula | C25H30F3N3O4 |
| Cas No. | 2767633-04-3 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
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