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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 132883Generated: October 30, 2026

Hydrochloric Acid → 7-[(3R)-3-Amino-4-(2,5-difluorophenyl)butanoyl]-N-(tert-butyl)-2-(trifluoromethyl)-5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxamide, hydrochloride

https://huagongshe.com/reaction/132883

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
Reactant7-[(3r)-3-[(Tert-butoxycarbonyl)amino]-4-(2,5-difluorophenyl)butanoyl]-n-(tert-butyl)-2-(trifluoromethyl)-5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxamideHCID 69223621—
Solvent1,4-DioxaneHCID 31275—
Product7-[(3R)-3-Amino-4-(2,5-difluorophenyl)butanoyl]-N-(tert-butyl)-2-(trifluoromethyl)-5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxamide, hydrochlorideHCID 131726934—

Reaction Steps

A solution of the product (25 mg) from Step A above, 0.5 mL of methanol and 2.5 mL of 4.0M hydrogen chloride in 1,4-dioxane was kept at room temperature for 18 h. The volatiles were removed under a stream of nitrogen, and the residue was triturated with ether. The resultant precipitate was collected and dried in vacuo to afford the title compound as a white powder. LC/MS: 499.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07388019B2
Source datasetuspto-grants-2008_06
ORD IDord-d0fd6093702b4b0a9554dfca04347752
Source noteuspto-grants-2008_06