(1,3-Benzoxazol-2-ylmethyl)amine hydrochloride → N-(benzo[d]oxazol-2-ylmethyl)-5-(3-(4-fluorobenzyl)-2-oxoimidazolidin-1-yl)-3-methylthiophene-2-carboxamide

Participants

Reaction Steps

Following the procedures as described in Example 55, making variations as required to replace 3-methyl-5-(2-oxo-3-(2-phenoxyethyl)imidazolidin-1-yl)thiophene-2-carboxylic acid with 5-(3-(4-fluorobenzyl)-2-oxoimidazolidin-1-yl)-3-methylthiophene-2-carboxylic acid to react with benzo[d]oxazol-2-ylmethanamine hydrochloride, the title compound was obtained as an off-white solid in 85% yield: 1H NMR (300 MHz, CDCl3) δ 7.74-7.68 (m, 1H), 7.56-7.49 (m, 1H), 7.40-7.24 (m, 4H), 7.09-6.99 (m, 2H), 6.50 (t, J=4.6 Hz, 1H), 6.14 (s, 1H), 4.88 (d, J=4.6 Hz, 2H), 4.44 (s, 2H), 3.85-3.76 (m, 2H), 3.49-3.39 (m, 2H), 2.53 (s, 3H); MS (ES+) m/z 465.2 (M+1), 487.2 (M+23).

Provenance & Evidence