6-(6-{[(1,1-Dimethylethoxy)carbonyl]amino}pyridin-2-yl)imidazo[1,2-a]pyridine-2-carboxylic acid → 6-(Furan-3-yl)imidazo[1,2-a]pyridine-2-carboxylic acid
Reaction equation
[O:1]1[CH:5]=[CH:4][C:3]([C:6]2[CH:7]=[CH:8][C:9]3[N:10]([CH:12]=[C:13]([C:15]([O:17]CC)=[O:16])[N:14]=3)[CH:11]=2)=[CH:2]1.CC(C)(OC(NC1N=C(C2C=CC3N(C=C(C(O)=O)N=3)C=2)C=CC=1)=O)C>>[O:1]1[CH:5]=[CH:4][C:3]([C:6]2[CH:7]=[CH:8][C:9]3[N:10]([CH:12]=[C:13]([C:15]([OH:17])=[O:16])[N:14]=3)[CH:11]=2)=[CH:2]1Participants
3
Procedure
384 mg of ethyl 6-(furan-3-yl)imidazo[1,2-a]pyridine-2-carboxylate are saponified under conditions similar to those described for the preparation of Intermediate 11 (step 11.3) to give 287 mg of 6-(furan-3-yl)imidazo[1,2-a]pyridine-2-carboxylic acid.
Sources & evidence
- ORD record
- ord-00d15cbdc23947d59f10932315d9fe0b
- Source dataset
- uspto-grants-2014_04
- Patent number
- US08691990B2
Reaction notes
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