HCID 17877358, compound → 2-Carboxy-1-(1-imidazolylmethyl)-7-trifluoromethylimidazo[1,2-a]quinoxalin-4(5H)-one

HRID 1599415Notes

Reaction equation

C([O:3][C:4]([C:6]1[N:7]=[C:8]2[C:17](=[O:18])[NH:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([C:19]([F:22])([F:21])[F:20])[CH:14]=3)[N:9]2[C:23]=1[CH2:24][C:25]1[NH:26][CH:27]=[CH:28][N:29]=1)=[O:5])C>Br>[C:4]([C:6]1[N:7]=[C:8]2[C:17](=[O:18])[NH:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([C:19]([F:21])([F:20])[F:22])[CH:14]=3)[N:9]2[C:23]=1[CH2:24][C:25]1[NH:29][CH:28]=[CH:27][N:26]=1)([OH:5])=[O:3]

Participants

Conditions

Temperature: 80 °C

Procedure

A suspension of 2-ethoxycarbonyl-1-(1-imidazolylmethyl)-7-trifluoromethylimidazo[1,2-a]quinoxalin-4(5H)-one (Example 5) (1.9 g, 4.69 mmol) in hydrobromic acid (48% in water) (100 ml) was stirred at 80° C. for 16 h. The mixture was concentrated in vacuo, and the residue stirred with methanol to give 1.95 g (88%) of the title compound as a HBr salt, which was isolated by filtration.

Workup

concentrationThe mixture was concentrated in vacuo
stirringthe residue stirred with methanol

Sources & evidence

ORD record: ord-6e4560d0154f4217a37a71b46afdfabe
Source dataset: uspto-grants-1998_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05741785

Reaction notes

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