Lithium Hydroxide → HCID 57845354, compound

Participants

Reaction Steps

2-(5-{3-[4-(4-Ethyl-oxazol-2-yl)-2-methoxy-phenoxy]-propoxy}-indol-1-yl)-propionic acid methyl ester (Example 62, 129.7 mg, 0.27 mmol) was dissolved in a solution of tetrahydrofuran (2 mL), methanol (1 mL), and water (2 mL). Lithium hydroxide (32.45 mg, 1.36 mmol) was added and the mixture was stirred at rt for 2 h. The solution was concentrated, diluted with water (5 mL), and acidified with 1N HCl. The resulting white precipitate was collected by filtration and dried to give the title compound (100.1 mg, 79.5%). LC/MS m/z 465.1 (M+H)+; RT 3.25 min. 1H NMR (400 MHz, DMSO-d6) δ 7.82 (s, 1H), 7.47 (dd, 1H), 7.42 (d, 1H), 7.37 (d, 1H), 7.28 (d, 1H), 7.11 (d, 1H), 7.06 (d, 1H), 6.77 (dd, 1H), 6.34 (d, 1H), 5.24 (q, 1H), 4.19 (t, 2H), 4.12 (t, 2H), 3.82 (s, 3H), 2.52 (m, 2H), 2.20 (m, 2H), 1.68 (d, 3H), 1.19 (t, 3H).

Provenance & Evidence