Trimellitic anhydride → HCID 21884371, compound

Participants

Reaction Steps

Prepared by the method of Example 1b), from 2-(3-amino-4-methoxyphenyl)-5-(3,4-difluorophenyl)benzoxazole (63 mg, 0.18 mmol) and 1,2,4-benzenetricarboxylic anhydride (35 mg, 0.18 mmol) the title compound was obtained (25 mg, 27%). 1H NMR (DMSO) δ 8.53(dd, 1H), 8.42(m, 3H), 8.18(m, 2H), 7.94(m, 2H), 7.79(dd, 1H), 7.60(m, 3H), 3.95(s, 3H). MS 527 m/z (M+H)+.

Provenance & Evidence