1. JAK/STAT Signaling Protein Tyrosine Kinase/RTK
  2. EGFR
  3. DBPR112

DBPR112 is an orally active furanopyrimidine-based EGFR inhibitor with IC50s of 15 nM and 48 nM for EGFRWT and EGFRL858R/T790M, respectively. DBPR112 can occupy the ATP-binding site. DBPR112 has significant antitumor efficacy.

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DBPR112 Chemical Structure

DBPR112 Chemical Structure

CAS No. : 1226549-49-0

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10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

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Description

DBPR112 is an orally active furanopyrimidine-based EGFR inhibitor with IC50s of 15 nM and 48 nM for EGFRWT and EGFRL858R/T790M, respectively. DBPR112 can occupy the ATP-binding site. DBPR112 has significant antitumor efficacy[1].

IC50 & Target[1]

EGFRWT

15 nM (IC50)

EGFRL858R/T790M

48 nM (IC50)

In Vitro

DBPR112 (compound 78; 0.32-1000 nM; 16 hours) induces reduction of phosphorylated EGFR in a dose-dependent manner[1].
DBPR112 shows the inhibitory activity against HCC827 (CC50=25 nM), H1975 (CC50=620 nM) and A431 Cell (CC50=1.02 μM) cell lines[1].
DBPR112 occupies the ATP-binding site and interacts with surrounding residues by covalent bonding, hydrogen bonds, and hydrophobic interactions, which give it a potent inhibitory activity against WT EGFR[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[1]

Cell Line: H1975 cells
Concentration: 0.32, 1.6, 8.0, 40, 200, 1000 nM
Incubation Time: 16 hours
Result: Induced reduction of phosphorylated EGFR in a dose-dependent manner in H1975 cells.
In Vivo

DBPR112 (orally; 20-50 mg/kg; 5 days/week for 2 consecutive weeks) significantly reduces tumor growth in HCC827 tumor model. DBPR112 (orally; 50 mg/kg; once a day for 15 days) has a significant antitumor effect (mean tumor growth inhibition of 34%) in H1975 tumor model[1].
DBPR112 (IV; 5 mg/kg) has a T1/2 of 2.3 hours, a CL of 55.6 mL/min•kg, and a Vss of 8.6 L/kg for rats[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: HCC827 tumor model (6- to 8-week-old athymic NU-Fox1nu nude mice)[1]
Dosage: 20, 50 mg/kg
Administration: Orally; 5 days/week for 2 consecutive weeks (days 1-5 and 8-12)
Result: Significantly reduced tumor growth.
Animal Model: Rats[1]
Dosage: 5 mg/kg for IV and 20 mg/kg for PO (Pharmacokinetic Analysis)
Administration: IV or PO
Result: Had a T1/2 of 2.3 hours, a CL of 55.6 mL/min•kg, and a Vss of 8.6 L/kg by IV.
Had a T1/2 of 3.4 hours, a Cmax of 508 ng/mL and an AUC of 2978 ng/mL•h by PO.
Clinical Trial
Molecular Weight

533.62

Formula

C32H31N5O3

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(NC1=CC=CC(C2=C(C3=CC=CC=C3)OC4=NC=NC(N[C@@H](C5=CC=CC=C5)CO)=C42)=C1)/C=C/CN(C)C

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 250 mg/mL (468.50 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.8740 mL 9.3700 mL 18.7399 mL
5 mM 0.3748 mL 1.8740 mL 3.7480 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (3.90 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: 2.08 mg/mL (3.90 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.8740 mL 9.3700 mL 18.7399 mL 46.8498 mL
5 mM 0.3748 mL 1.8740 mL 3.7480 mL 9.3700 mL
10 mM 0.1874 mL 0.9370 mL 1.8740 mL 4.6850 mL
15 mM 0.1249 mL 0.6247 mL 1.2493 mL 3.1233 mL
20 mM 0.0937 mL 0.4685 mL 0.9370 mL 2.3425 mL
25 mM 0.0750 mL 0.3748 mL 0.7496 mL 1.8740 mL
30 mM 0.0625 mL 0.3123 mL 0.6247 mL 1.5617 mL
40 mM 0.0468 mL 0.2342 mL 0.4685 mL 1.1712 mL
50 mM 0.0375 mL 0.1874 mL 0.3748 mL 0.9370 mL
60 mM 0.0312 mL 0.1562 mL 0.3123 mL 0.7808 mL
80 mM 0.0234 mL 0.1171 mL 0.2342 mL 0.5856 mL
100 mM 0.0187 mL 0.0937 mL 0.1874 mL 0.4685 mL
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DBPR112 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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