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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 394746Generated: October 29, 2026

Propiolic Acid → HCID 9907221, compound

https://huagongshe.com/reaction/394746

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropiolic AcidHCID 10110—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantN4-(3-Bromophenyl)quinazoline-4,6-diamineHCID 5328042—
SolventDimethylformamideHCID 6228—
ProductHCID 9907221HCID 9907221—

Reaction Conditions

Temperature0 °C

Reaction Steps

1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (200 mg, 1.04 mmol) was added to a solution of 6-amino-4-[(3-bromophenyl)-amino]quinazoline (158 mg, 0.5 mmol) and propiolic acid (0.08 mL, 1.1 mmol) in DMF (1.5 mL) stirred under N2 at 0° C. The resulting solution was stirred at 0° C. for 30 minutes and quenched with water. The formed fine solid was collected by Buchner filtration then dissolved in methanol and purified by preparative tlc on silica, eluting with 10% MeOH/CHCl3. The title compound was isolated as a yellow solid (21 mg, 12%), mp>310° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06602863B1
Source datasetuspto-grants-2003_08
ORD IDord-33420285586c4275896ed05d57b66bbc
Source noteuspto-grants-2003_08