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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2386908Generated: October 31, 2026

Water → HCID 59222959, compound

https://huagongshe.com/reaction/2386908

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant1-IodopropaneHCID 33643—
ReactantHCID 59222981HCID 59222981—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 59222959HCID 5922295963.8%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 5-[2-(5,8-difluoroquinazolin-4-ylamino)-ethyl]-2-(4-trifluoromethylpyridin-2-yloxy)-phenol (0.462 g, 0.5 mmol) in DMSO (5 mL) was added 1-iodopropane (0.204 g, 1.2 mmol) and K2CO3 (0.207 g, 1.5 mmol). The reaction mixture was stirred at 50° C. overnight and then at 70° C. for another 24 h. After cooling to room temperature, the mixture was poured into water and the gum-like material was separated via suction filtration and washed with water. The gum-like product then was partitioned between CH2Cl2 and brine. The organic phase was dried over sodium sulfate and concentrated in vacuo, and the product was purified by preparative reverse phase HPLC to give 0.161 g (32%) of (5,8-difluoroquinazolin-4-yl)-{2-[3-propoxy-4-(4-trifluoromethylpyridin-2-yloxy)-phenyl]-ethyl}-amine as a brown gum; MS m/z 504. 1H NMR (CDCl3): δ 8.68 (s, 1H), 8.26 (d, J=4.8 Hz, 1H), 7.33 (m, 1H), 7.08-7.15 (m, 3H), 6.87-7.03 (m, 3H), 6.70-6.83 (br, 1H), 3.89-3.97 (m, 2H), 3.80-3.86 (m, 2H), 3.02 (t, J=6.9 Hz, 2H), 1.51 (m, 2H), 0.66 (t, J=7.2 Hz, 3H). LC/MS: 506.10 (M++1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268843B2
Source datasetuspto-grants-2012_09
ORD IDord-922fcf9af88c4893a2021d51b9166136
Source noteuspto-grants-2012_09