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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1257232Generated: October 31, 2026

Water → HCID 71585133, compound

https://huagongshe.com/reaction/1257232

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 86713664HCID 86713664—
SolventMethanolHCID 887—
ProductHCID 71585133HCID 7158513335.3%

Reaction Steps

To a solution of N-acetyl-N-{3-[2,4-difluoro-5-(3-phenyl-ureido)-phenyl]-1-ethyl-2-oxo-1,2-dihydro-[1,6]naphthyridin-7-yl}-acetamide (100 mg, 0.19 mmol) in MeOH (2 mL) was added K2CO3 (79 mg, 0.57 mmol) and water (1 mL), and the mixture was stirred overnight at RT. MeOH was removed under reduced pressure and the residue was diluted with water (8 mL). The mixture was extracted with EtOAc to give a crude product which purified by prep-HPLC to give 1-(5-(7-acetamido-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2,4-difluorophenyl)-3-phenylurea (32 mg, 23% yield). 1H NMR (400 MHz, DMSO-d6): δ 10.85 (s, 1H), 9.08 (s, 1H), 8.74 (s, 1H), 8.61 (s, 1H), 8.27 (s, 1H), 8.21-8.16 (m, 1H), 8.07 (s, 1H), 7.45-7.40 (m, 3H), 7.30-7.26 (m, 2H), 7.00-6.96 (m, 1H), 4.24-4.18 (q, J=6.8 Hz, 2H), 2.16 (s, 3H), 1.28-1.25 (t, J=6.8 Hz, 3H); MS (ESI) m/z: 478.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08461179B1
Source datasetuspto-grants-2013_06
ORD IDord-55883ccd35c646c085ecd5cf915c0eab
Source noteuspto-grants-2013_06