Hydrochloric Acid → Methyl 2-[3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]-propionate

HRID 1862266Notes

Reaction equation

HRID 1862266 reaction equation
N(OCCC(C)C)=O.N[C:10]1[CH:29]=[C:28]([F:30])[C:27]([N:31]2[C:36](=[O:37])[CH:35]=[C:34]([C:38]([F:41])([F:40])[F:39])[N:33]([CH3:42])[C:32]2=[O:43])=[CH:26][C:11]=1[O:12][C:13]1[C:14]([O:19][CH:20]([C:22]([O:24][CH3:25])=[O:23])[CH3:21])=[N:15][CH:16]=[CH:17][CH:18]=1.[ClH:44]>[Cu]Cl.[Cu](Cl)Cl.C(#N)C>[Cl:44][C:10]1[CH:29]=[C:28]([F:30])[C:27]([N:31]2[C:36](=[O:37])[CH:35]=[C:34]([C:38]([F:41])([F:40])[F:39])[N:33]([CH3:42])[C:32]2=[O:43])=[CH:26][C:11]=1[O:12][C:13]1[C:14]([O:19][CH:20]([C:22]([O:24][CH3:25])=[O:23])[CH3:21])=[N:15][CH:16]=[CH:17][CH:18]=1

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 8053Isoamyl NitriteHCID 121155033-{2-Amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-{1-(methoxycarbonyl)ethoxy}pyridine

Product 1

HCID 12115504Methyl 2-[3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]-propionate

Reagents, catalysts & solvents 3

HCID 24014Cupric ChlorideCatalystHCID 62652Cuprous chlorideCatalystHCID 6342AcetonitrileSolvent

Procedure

18 mg of Isoamyl nitrite was added to a mixture of 0.16 g of 3-{2-amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-{1-(methoxycarbonyl)ethoxy}pyridine, 63 mg of copper(I) chloride, 129 mg of copper(II) chloride and 1.5 ml acetonitrile dropwise at 0° C. and the mixture was stirred for 10 minutes, then at room temperature for 1 hour. This reaction solution was poured into a mixture of 1N hydrochloric acid and ice, and extracted with ethyl acetate. The organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.12 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-{1-(methoxycarbonyl) ethoxy} pyridine (as a mixture of two diastereomerical isomers) [present compound 7-2].

Workup

  1. waitat room temperature for 1 hour
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated saline
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-a78f9afaa25147e8b235e9df043a228e
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

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