PRN1371 - 98%, high purity , CAS No.1802929-43-6, Inhibitor of fibroblast growth factor receptor 1;Inhibitor of fibroblast growth factor receptor 2;Inhibitor of fibroblast growth factor receptor 3;Inhibitor of fibroblast growth factor receptor 4

Item Number

P414069

• Synonyms: PRN1371|1802929-43-6|PRN-1371|8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one|S3OPE9IA3Q|6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)-8-[3-(4-prop-2-enoylpiperazin-1-yl)pr
• Specifications & Purity: Moligand™, ≥98%
• Biochemical and Physiological Mechanisms: PRN1371 is an irreversible covalent FGFR1-4 kinase inhibitor, with IC50s of 0.6, 1.3, 4.1, 19.3 and 8.1 nM for FGFR1, 2, 3, 4 and CSF1R, respectively.
• Storage Temp: Store at -20°C
• Shipped In: Ice chest + Ice pads
• Grade: Moligand™
• Action Type: INHIBITOR
• Mechanism of action: Inhibitor of fibroblast growth factor receptor 1;Inhibitor of fibroblast growth factor receptor 2;Inhibitor of fibroblast growth factor receptor 3;Inhibitor of fibroblast growth factor receptor 4

Product Description

Information

PRN1371 is an irreversible covalentFGFR1-4kinase inhibitor, withIC50sof 0.6, 1.3, 4.1, 19.3 and 8.1 nM for FGFR1, 2, 3, 4 and CSF1R, respectively.

Targets

FGFR1 (Cell-free assay); FGFR2 (Cell-free assay); FGFR3 (Cell-free assay); CSF1R (Cell-free assay); FGFR4 (Cell-free assay) 0.6 nM; 1.3 nM; 4.1 nM; 8.1 nM; 19.3 nM

In vitro

PRN1371 is an irreversible nanomolar inhibitor of FGFR1−4. PRN1371 presents a unique profile of high biochemical and cellular potency (FGFR1 IC50 = 0.6 nM, SNU16 IC50 = 2.6 nM), prolonged target engagement (FGFR1 occupancy 24 h = 96%), <30% hERG inhibition at 1 μM, and good predicted ADME stability with BME reactivity Kd>100 μM. PRN1371 which maintained high FGFR1 occupancy with improved solubility and exceptional oral bioavailability.

In vivo

A rat iv (2 mg/kg) PK study of compound 34 showed rapid clearance (Cl = 160 ml/min/kg), yet dosing po (20 mg/kg) demonstrated high oral exposure (AUC = 4348 h·ng/mL) and a reasonable half-life (t1/2 = 3.8 h). PK studies of compound 34 in rat, dog, and cynomolgus monkey showed rapid iv clearance in all species; however there were large species differences in oral exposure and bioavailability for monkey compared to rat and dog. In rat, high exposure upon oral dosing (e.g., Cmax = 1785 ng/mL, AUC = 4348 ng·h/mL) and >100% bioavailability (F) suggested good absorption and partial saturation of clearance mechanisms at the 20 mg/kg dose. Unique to the rat, there is a large difference in half-life between the iv (t1/2 = 0.8 h) and po (t1/2 = 3.8 h) routes of administration, also indicative of possible saturation of a clearance mechanism upon oral dosing. In the dogs, the same methylcellulose suspension formulation used for the rat gave low oral absorption and bioavailability (F < 15%). In SNU16 gastric cancer xenograft mouse model, Compound 34 induced a dose-dependent reduction in tumor volume and up to 68% tumor growth inhibition at the highest dose of 10 mg/kg b.i.d. following 27 days of treatment. All doses were well tolerated with no significant body weight loss.

Cell Research(from reference)

Cell lines：HUVECs 

Incubation Time：1 h