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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1257206Generated: November 2, 2026

Hydrochloric Acid → HCID 86713644, compound

https://huagongshe.com/reaction/1257206

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 71584928HCID 71584928—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
ProductHCID 86713644HCID 86713644180.3%

Reaction Steps

To a suspension of 1-(4-chloro-5-(7-(2-(dimethylamino)ethylamino)-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl)-3-phenylurea (0.260 g, 0.497 mmol) in MeOH (1 mL) was added HCl (1.25 M in MeOH) (0.875 mL, 1.094 mmol) and the mixture was stirred at RT for 1 h. The reaction mixture was diluted with EtOAc and the remaining solid was filtered, washed and dried to provide 1-(4-chloro-5-(7-(2-(dimethylamino)ethylamino)-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl)-3-phenylurea dihydrochloride (267 mg, 90% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ 9.37 (s, 1H), 8.83 (s, 1H), 8.44 (s, 1H), 8.17 (d, J=9 Hz, 1H), 7.78 (m, 1H), 7.52 (d, J=11 Hz, 1H), 7.42 (m, 2H), 7.25 (m, 3H), 6.95 (t, J=8 Hz, 1H), 6.42 (s, 1H), 4.13 (m, 2H), 3.63 (m, 2H), 3.02 (s, 2H), 2.64 (s, 6), 1.20 (t, J=6 Hz, 3H); MS (ESI) m/z: 523.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08461179B1
Source datasetuspto-grants-2013_06
ORD IDord-00cf08756a4b495a9d48bd65c508bd14
Source noteuspto-grants-2013_06