反应详情

A solution of Example 104B (300 mg, 0.9 mmol) in anhydrous 4N HCl/dioxane solution (10 mL) was stirred for 2 hours and concentrated to provide the desired product as the hydrochloride salt. MS (ESI(−)) m/e 228, 230 (M−H)−; 1H NMR (300 MHz, DMSO-d6) δ 7.34 (d, 1H), 6.66 (d, 1H), 4.44 (br s, 3H), 2.34 (s, 3H).

1. concentrationconcentrated