1-Pentanol → 3-{2-Chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(n-pentyloxycarbonyl)methoxypyridine

HRID 1862299Notes

Reaction equation

[Cl:1][C:2]1[CH:20]=[C:19]([F:21])[C:18]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])=[CH:17][C:3]=1[O:4][C:5]1[C:6]([O:11][CH2:12][C:13]([O:15][CH3:16])=[O:14])=[N:7][CH:8]=[CH:9][CH:10]=1.C(=O)([O-])[O-].[Na+].[Na+].[CH2:41](O)[CH2:42][CH2:43][CH2:44]C>O>[Cl:1][C:2]1[CH:20]=[C:19]([F:21])[C:18]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])=[CH:17][C:3]=1[O:4][C:5]1[C:6]([O:11][CH2:12][C:13]([O:15][CH2:16][CH2:41][CH2:42][CH2:43][CH3:44])=[O:14])=[N:7][CH:8]=[CH:9][CH:10]=1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 0.30 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine [present compound 7-7], 0.06 g of sodium carbonate and 3.0 ml of n-pentanol was stirred for 1.5 hours at 100° C. The reaction solution was cooled to room temperature, then, poured into water, 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 0.07 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(n-pentyloxycarbonyl)methoxypyridine [present compound 7-50].

Workup

temperatureThe reaction solution was cooled to room temperature
extractionextracted with ethyl acetate
washThe organic layer was washed with saturated saline
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated

Sources & evidence

ORD record: ord-3d8db458b9434461886c46abd2996db8
Source dataset: uspto-grants-2003_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06537948B1

Reaction notes

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