4-Difluoromethoxy-2-ethylbenzooxazole-7-carboxylic acid → HCID 10109411, compound
Reaction equation
[F:1][CH:2]([F:18])[O:3][C:4]1[C:9]2[N:10]=[C:11]([CH2:13][CH3:14])[O:12][C:8]=2[C:7]([C:15]([OH:17])=O)=[CH:6][CH:5]=1.[CH2:19]([C:21]1[C:25]([NH2:26])=[C:24]([CH3:27])[O:23][N:22]=1)[CH3:20]>C(OCC)C.CCCCCC>[CH2:19]([C:21]1[C:25]([NH:26][C:15]([C:7]2[C:8]3[O:12][C:11]([CH2:13][CH3:14])=[N:10][C:9]=3[C:4]([O:3][CH:2]([F:1])[F:18])=[CH:5][CH:6]=2)=[O:17])=[C:24]([CH3:27])[O:23][N:22]=1)[CH3:20]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Starting from 4-difluoromethoxy-2-ethylbenzooxazole-7-carboxylic acid (0.20 g) and 3-ethyl-5-methylisoxazol-4-ylamine (0.20 g). Purification by column chromatography on silica eluting 20-50% ethyl acetate in heptane afforded, after trituration with diethyl ether-hexane, the title compound as a white solid (0.155 g).