Hydrochloric Acid → HCID 86698708, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of methyl 6-chloro-5-[4-(3-hydroxypropoxy)-3-methoxyphenyl]-1H-indole-3-carboxylate (92 mg, 0.24 mmol) in MeOH (5 mL) and water (2 mL) was added NaOH (94 mg, 2.4 mmol). The reaction mixture was heated at 70° C. and stirred for 24 hours. TLC (petroleum ether/ethyl acetate=1:1) showed the reaction was complete. The mixture was acidified by 1N HCl to pH 4 and extracted with ethyl acetate (10 mL×3). The combined organic layers was dried over sodium sulfate, filtered, and concentrated in vacuo to give a brown residue. It was purified by preparative HPLC to give the title compound (35 mg, 35% yield) as a white solid. MS (AP−) 398.1 (M+Na)−. 1H NMR (400 MHz, DMSO-d6) δ 11.93 (s, 1H), 8.07 (s, 1H), 7.93 (s, 1H), 7.60 (s, 1H), 7.02 (d, 1H), 6.97 (s, 1H) 6.89 (dd, 1H), 4.04 (t, 2H), 3.77 (s, 3H), 3.51 (t, 2H), 1.88 (m, 2H).

Provenance & Evidence