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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2414824Generated: October 25, 2026

2-Naphthylalanine → 1-{2-[1-(4-Fluoro-benzyl)-6,8-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl]-ethyl}-3-(2-methyl-quinolin-4-yl)-urea

https://huagongshe.com/reaction/2414824

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-NaphthylalanineHCID 185915—
Reactant1-(2-Chloroethyl)-3-(2-methylquinolin-4-yl)ureaHCID 2344366—
Reactant1-(4-Fluoro-benzyl)-6,8-dimethoxy-1,2,3,4-tetrahydro-isoquinolineHCID 17953286—
SolventTetrahydrofuranHCID 8028—
Product1-{2-[1-(4-Fluoro-benzyl)-6,8-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl]-ethyl}-3-(2-methyl-quinolin-4-yl)-ureaHCID 10301945—

Reaction Conditions

Temperature75 °C

Reaction Steps

To a solution of 1-(4-fluoro-benzyl)-6,8-dimethoxy-1,2,3,4-tetrahydro-isoquinoline (example A1, 50 mg, 0.16 mmol) in anhydrous THF (2.5 mL) is added 1-(2-chloro-ethyl)-3-(2-methyl-quinolin-4-yl)-urea (example D1, 43.8 mg, 0.16 mmol), TEA (34.6 μL, 0.25 mmol) and Nal (2.5 mg, 0.017 mmol). The mixture is stirred at 75° C. for five days in a sealed flask. The reaction mixture is evaporated, and the residue is purified by preparative HPLC to provide the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06815451B2
Source datasetuspto-grants-2004_11
ORD IDord-b10086768987492e9db8d3923b980bcc
Source noteuspto-grants-2004_11