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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1081317Generated: November 2, 2026

Methyl iodide → 6-[N-[3,5-Bis(trifluoromethyl)benzyl]-N-methylamino carbonyl]-5-(4-fluorophenyl)-7,8-dihydro-1,7-dimethyl-8-oxopyrido[3,4-b]pyridinium iodide

https://huagongshe.com/reaction/1081317

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
Reactant5-(4-Fluoro-phenyl)-7-methyl-8-oxo-7,8-dihydro-[1,7]naphthyridine-6-carboxylic acid (3,5-bis-trifluoromethyl-benzyl)-methyl-amideHCID 9871891—
Solvent1,4-DioxaneHCID 31275—
Product6-[N-[3,5-Bis(trifluoromethyl)benzyl]-N-methylamino carbonyl]-5-(4-fluorophenyl)-7,8-dihydro-1,7-dimethyl-8-oxopyrido[3,4-b]pyridinium iodideHCID 23364050—

Reaction Steps

A mixture of N-[3,5-bis(trifluoromethyl)benzyl]-5-(4-fluorophenyl)-7,8-dihydro-N, 7-dimethyl-8-oxo-6pyrido[3,4-b]pyridinecarboxamide (Example 1) (175 mg), iodomethane (3 ml) and dioxane (3 ml) was heated for 16 hours under reflux. The solvent was distilled off to leave the above-titled compound as yellow crystals (200 mg), m.p.184°-185° C. (decomp.) (recrystallized from dioxane-ethyl acetate).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05585385
Source datasetuspto-grants-1996_12
ORD IDord-9f4e30010ff44cb8b081c9a31566a902
Source noteuspto-grants-1996_12