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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2264457Generated: November 1, 2026

Hydrochloric Acid → HCID 68781324, compound

https://huagongshe.com/reaction/2264457

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 68782157HCID 68782157—
SolventEthanolHCID 702—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68781324HCID 68781324—

Reaction Steps

A solution of 4-(6,7-dimethoxy-4-piperidin-1-yl-quinazolin-2-ylamino)-piperidine-1-carboxylic acid tert-butyl ester (1.90 g, 4.03 mmol) in ethanol (10 mL) and 4 M HCl in dioxane (40 mL) was stirred at rt for 2 h. The solvent was removed under reduced pressure and the crude product used in the consecutive step without further purification assuming quantitative deprotection and formation of the dihydrochloride salt. MS (ISP): 372.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07855194B2
Source datasetuspto-grants-2010_12
ORD IDord-c2f7a11e0c444f27891ad57aa34a5a13
Source noteuspto-grants-2010_12