[CH:1](=O)[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)[OH:4].[NH2:10][C:11]1[CH:16]=[CH:15][C:14]([CH2:17][N:18]2[C:22](=[O:23])[C:21]([CH3:25])([CH3:24])[CH2:20][O:19]2)=[C:13]([Cl:26])[CH:12]=1.O>C(O)C>[Cl:26][C:13]1[CH2:12][C:11](=[N:10][CH2:1][C:2]2[CH:8]=[CH:7][CH:6]=[CH:5][C:3]=2[OH:4])[CH:16]=[CH:15][C:14]=1[CH2:17][N:18]1[C:22](=[O:23])[C:21]([CH3:25])([CH3:24])[CH2:20][O:19]1A warmed solution of 0.48 gram (0.004 mole) of salicylaldehyde in 35 mL of ethanol was stirred, and 1.0 gram (0.004 mole) of 2-[(4-amino-2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone was added in one portion. The reaction mixture was heated an additional 30 minutes and then 15 mL of water was added. The mixture was filtered, and the filtrate was cooled. The resultant oily suspension solidified when abraded. The solid was collected by filtration to yield, when dried, 0.87 gram of 2-[[2-chloro-4-[(2-hydroxyphenyl)methylimino]phenyl]-methyl]-4,4-dimethyl-3-isoxazolidinone; m.p. 105°-107° C.
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