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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1778079Generated: November 1, 2026

Hydrochloric Acid → HCID 118036203, compound

https://huagongshe.com/reaction/1778079

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant1,8-Naphthyridine-1(2H)-carboxamide, 7-(dimethoxymethyl)-3,4-dihydro-6-(hydroxymethyl)-N-[5-(trifluoromethyl)-2-pyridinyl]-HCID 118036236—
SolventTetrahydrofuranHCID 8028—
ProductHCID 118036203HCID 118036203—

Reaction Steps

A solution of 7-(dimethoxymethyl)-6-(hydroxymethyl)-N-(5-(trifluoromethyl)pyridin-2-yl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide (intermediate 14, 18 mg, 0.042 mmol) in THF (0.8 ml) was treated with water (0.6 ml) and conc. HCl (0.2 ml) and stirred for 15 min. The reaction mixture was quenched by addition of sat. aq. NaHCO3 (gas evolution), extracted with DCM (3×). The combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The crude material was triturated with EtOAc/heptanes 10:1, filtered and dried under vacuum to give the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09266883B2
Source datasetuspto-grants-2016_02
ORD IDord-db35aec3cd9a46008ef53c4edec196d4
Source noteuspto-grants-2016_02