4-Benzyloxy-2(1H)-pyridone → HCID 178470397, compound

HRID 1887326Notes

Reaction equation

[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][NH:12][C:11](=[O:15])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[C:17]1[NH:18][C:19]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[C:20]([CH3:22])[N:21]=1>>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([C:17]2[NH:18][C:19]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[C:20]([CH3:22])[N:21]=2)[C:11](=[O:15])[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Reactant 2

HCID 36077244-Benzyloxy-2(1H)-pyridone

HCID 178470341HCID 178470341, compound

Product 1

HCID 178470397HCID 178470397, compoundYield 26%

Procedure

Following the procedure as described in Example 12, making variations only as required to use 4-(benzyloxy)pyridin-2(1H)-one in place of 4-phenylpyridin-2-ol to react with ethyl 2-bromo-4-methyl-1H-imidazole-5-carboxylate in place of ethyl 2-bromo-4-methylthiazole-5-carboxylate at 130° C. for 64 hours, the title compound was obtained as a colorless solid in 26% yield: mp 135-136° C.; 1H NMR (300 MHz, CDCl3) δ 12.01 (s, 1H), 8.60-8.50 (m, 1H), 7.44-7.36 (m, 5H), 6.21 (dd, J=8.0, 2.6 Hz, 1H), 6.04 (d, J=2.6 Hz, 1H), 5.06 (s, 2H), 4.44-4.29 (m, 2H), 2.59-2.51 (m, 3H), 1.44-1.34 (m, 3H); MS (ES+) m/z 354.2 (M+1).

Sources & evidence

ORD record: ord-413410d143fd4a9991a8d71b67e3dfda
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08501746B2

Reaction notes

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