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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 393250Generated: October 29, 2026

HCID 22649188, compound → HCID 22649208, compound

https://huagongshe.com/reaction/393250

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 22649188HCID 22649188—
CatalystPalladiumHCID 23938—
SolventDimethylformamideHCID 6228—
ProductHCID 22649208HCID 2264920882.8%

Reaction Steps

A mixture of 1-(6,7-dimethoxyquinazolin-4-yl)-3-(2-nitrophenyl)urea (0.18 g), 10% palladium-on-charcoal catalyst (0.023 g) and DMF (10 ml) was stirred at ambient temperature under an atmosphere of hydrogen for 16 hours. The reaction mixture was filtered and the filtrate was evaporated. The resultant gum was triturated under ethyl acetate and there was thus obtained the title compound as a solid (0.137 g); NMR Spectrum: (DMSOd6) 3.85-3.95 (br s, 8H), 6.63 (t, 1H), 6.81 (d, 1H), 6.91 (t, 1H), 7.25 (s, 1H), 7.47 (d, 1H), 8.05 (s, 1H), 8.64 (s, 1H), 10.28 (br s, 1H), 11.74 (br s, 1H); Mass Spectrum: M+H+ 340.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06806274B1
Source datasetuspto-grants-2004_10
ORD IDord-7ef714cbafa84f3ea5e084763775662e
Source noteuspto-grants-2004_10