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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035391Generated: November 1, 2026

o-Phenetidine → HCID 58228561, compound

https://huagongshe.com/reaction/2035391

Reaction equation

Participants

RoleNameHCIDCharge
Reactanto-PhenetidineHCID 7203—
ReactantPropionyl chlorideHCID 62324—
Reactant2-Amino-4-chlorobenzoic acidHCID 66646—
SolventTolueneHCID 1140—
SolventTetrahydrofuranHCID 8028—
SolventTriethylamineHCID 8471—
SolventPhosphorus trichlorideHCID 24387—
ProductHCID 58228561HCID 58228561—

Reaction Steps

Briefly, 2-amino-4-chlorobenzoic acid was acylated with propionyl chloride in triethylamine (TEA) and tetrahydrofuran (THF). The acylated compound was refluxed with 2-ethoxyaniline in phosphorus trichloride and toluene to produce 2-ethyl-7-chloro-3-(2-ethoxyphenyl)quinazolin-4(3H)-one. The 2-ethyl-7-chloro-3-(2-ethoxyphenyl)quinazolin-4(3H)-one was brominated with N-bromosuccinimide (NBS) in carbon tetrachloride, the product of which was subsequently reacted with piperazine in THF. The piperazinyl moiety was acylated with 4-chlorophenoxyacetyl chloride in THF and TEA to yield the final product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575143B2
Source datasetuspto-grants-2013_11
ORD IDord-dbd1e885f4204bb1b3c7103ab07b5adf
Source noteuspto-grants-2013_11