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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11868Generated: October 31, 2026

1,4-Dioxane hydrochloride → Hydrochloric Acid

https://huagongshe.com/reaction/11868

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
Reactant(2S)-2-(4-(N-2-picolyl-N-Boc aminomethyl)naphthoylamino)-5-((8R)-5,6,7,8-tetrahydroquinolin-8-ylamino)valeric AcidHCID 21043731—
SolventMethanolHCID 887—
ProductHydrochloric AcidHCID 313—
Product(2S)-2-(4-(N-2-picolylaminomethyl)naphthoylamino)-5-((8R)-5,6,7,8-tetrahydroquinolin-8-ylamino)valeric AcidHCID 21043730—

Reaction Steps

The compound obtained in Example 54-3 (7.2 mg) was dissolved in methanol (0.15 ml) and 4 mol/l hydrochloric acid/dioxane solution (0.15 ml) was added. After 2 hours, the reaction solution was concentrated. The residue was purified by silica gel column chromatography (chloroform/methanol/water=7/3/0.5). After the addition of 1 mol/l hydrochloric acid, the residue was concentrated and subjected to azeotropic distillation with methanol to obtain hydrochloride of the title compound (6.3 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07098215B2
Source datasetuspto-grants-2006_08
ORD IDord-7d03949ae1e54900937fdaebc8008d05
Source noteuspto-grants-2006_08