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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035393Generated: November 1, 2026

o-Phenetidine → HCID 58228565, compound

https://huagongshe.com/reaction/2035393

Reaction equation

Participants

RoleNameHCIDCharge
Reactanto-PhenetidineHCID 7203—
Reactant4-Nitroanthranilic acidHCID 12076—
ReactantPropionyl chlorideHCID 62324—
SolventTolueneHCID 1140—
SolventTetrahydrofuranHCID 8028—
SolventTriethylamineHCID 8471—
SolventPhosphorus oxychlorideHCID 24813—
ProductHCID 58228565HCID 58228565—

Reaction Steps

Briefly, 2-amino-4-nitrobenzoic acid was acylated with propionyl chloride in triethylamine (TEA) and tetrahydrofuran (THF). The acylated compound was refluxed with 2-ethoxyaniline in phosphorus oxychloride (POCl3) and toluene to produce 2-ethyl-7-nitro-3-(2-ethoxyphenyl)quinazolin-4(3H)-one. The 2-ethyl-7-nitro-3-(2-ethoxyphenyl)quinazolin-4(3H)-one was brominated with N-bromosuccinimide (NBS) in carbon tetrachloride, the product of which was subsequently reacted with N-methylhomopiperazine in THF. The product of this reaction was subjected to hydrogenation conditions using catalytic amounts of Pd/carbon (10% Pd) to afford Compound 10.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575143B2
Source datasetuspto-grants-2013_11
ORD IDord-f7f1aa555851455fa82793906db032f1
Source noteuspto-grants-2013_11