[Cl:1][CH2:2][C:3]1[O:4][C:5]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[N:7]=1.[CH:20]([NH2:23])([CH3:22])[CH3:21]>C1C=CC=CC=1>[ClH:1].[CH:20]([NH:23][CH2:2][C:3]1[O:4][C:5]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[N:7]=1)([CH3:22])[CH3:21]A mixture of 8 g. 2-chloromethyl-4,5-diphenyloxazole (prepared as described in Example 1 a), 8g. isopropylamine and 50 ml. anhydrous benzene was kept in a stoppered flask for 48 hours at room temperature.
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