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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1043632Generated: November 1, 2026

Hydrochloric Acid → 4-(2-Chloro-6-(piperidin-4-ylmethyl)pyrido[3,2-d]pyrimidin-4-yl)morpholine

https://huagongshe.com/reaction/1043632

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 4-((2-chloro-4-morpholinopyrido[3,2-d]pyrimidin-6-yl)methyl)piperidine-1-carboxylateHCID 58404998—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
Product4-(2-Chloro-6-(piperidin-4-ylmethyl)pyrido[3,2-d]pyrimidin-4-yl)morpholineHCID 58404952—

Reaction Steps

tert-butyl 4-((2-chloro-4-morpholinopyrido[3,2-d]pyrimidin-6-yl)methyl)piperidine-1-carboxylate from Example 137 (0.33 g) in DCM (5 mL) was treated with 4N HCl in dioxane (0.9 mL) for 30 minutes at room temperature. The reaction mixture was concentrated to dryness to afford quantitative yield of 4-(2-chloro-6-(piperidin-4-ylmethyl)pyrido[3,2-d]pyrimidin-4-yl)morpholine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08563540B2
Source datasetuspto-grants-2013_10
ORD IDord-fb68d321cc2e4b6e8666f8da98d87342
Source noteuspto-grants-2013_10