5-Methylthiophene-2-carboxylic acid → HCID 57385114, compound

Participants

Reaction Steps

The title compound (45.5 mg, 57% yield) was prepared as described for Example 13a starting from 5-methylthiophene-2-carboxylic acid (32.1 mg, 0.23 mmol) and 5′-methylspiro[chroman-4,2′-imidazole]-4′,6-diamine (Intermediate 30, 52 mg, 0.23 mmol): 1H NMR (500 MHz, DMSO-d6) δ ppm 1.91 (m, 2H), 2.23 (s, 3H), 2.47 (s, 3H), 4.39 (m, 2H), 6.55 (s, 2H), 6.73 (d, 1H), 6.78 (d, 1H), 6.86 (dd, 1H), 7.50 (dd, 1H), 7.73 (d, 1H), 9.86 (s, 1H); MS (ES+) m/z 355 [M+H]+.

Provenance & Evidence