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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1879922Generated: November 3, 2026

Hydrochloric Acid → HCID 178468491, compound

https://huagongshe.com/reaction/1879922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiisopropylethylamineHCID 81531—
ReactantEthyl 4-benzylpiperidine-4-carboxylateHCID 53297794—
ReactantHCID 178486816HCID 178486816—
SolventEthanolHCID 702—
ProductHCID 178468491HCID 17846849187%

Reaction Steps

A mixture of 1.2 g (5 mmol) 2-Chloro-6,7-dimethoxy-quinazolin-4-ol (commercially available), 2.26 g (8 mmol) 4-Benzyl-piperidine-4-carboxylic acid ethyl ester; hydrochloride and 1.93 g (15 mmol) DIPEA in 80 mL ethanol was heated to reflux for 62 h. The mixture was concentrated, the precipitate filtered off and washed with ethanol and diethyl ether. The residue was dried. 1.9 g (87%) of the title compound was isolated as white solid. MS (m/e): 452.2 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08318749B2
Source datasetuspto-grants-2012_11
ORD IDord-aa5c635bbc684f72bb11a0fa9105a0d8
Source noteuspto-grants-2012_11