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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 625810Generated: October 30, 2026

Ethanol → HCID 56848548, compound

https://huagongshe.com/reaction/625810

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHCID 46892491HCID 46892491—
SolventEthyl formateHCID 8025—
ProductHCID 56848548HCID 568485488%

Reaction Conditions

Temperature120 °C

Reaction Steps

To 2-(amino(4-fluorophenyl)methyl)-N-(5-methyl-1H-pyrazol-3-yl)quinazolin-4-amine from Example 45 Step B (0.1 g, 0.28 mmol) in ethyl formate (4 mL) were added TEA (0.2 mL) and EtOH (0.5 mL), and the mixture was heated to 120° C. for 30 min in a Biotage microwave reactor and then concentrated under reduced pressure. The residue was diluted with DMSO (5 mL) and purified by reverse-phase preparative HPLC (Varian diphenyl reverse phase column, eluted with gradient of solvent B=0.05% HOAC/MeOH and solvent A=0.05% HOAc/H2O) to afford N-((4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methyl)formamide (8 mg, 8%). 1H NMR (300 MHz, DMSO-d6) δ 2.26 (s, 3H) 6.07 (d, 1H) 6.44 (s, 1H) 7.16 (t, 2H) 7.4-7.6 (m, 3H) 7.8 (m, 2H) 8.21 (s, 1H) 8.62 (d, 1H) 9.06 (d, 1H) 10.48 (bs, 1H) 12.17 (bs, 1H); LC-MS (ESI) m/z 377 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09308207B2
Source datasetuspto-grants-2016_04
ORD IDord-57b3430928b6493e999c0f3a2724d013
Source noteuspto-grants-2016_04