Hydrochloric Acid → HCID 57703719, compound

Participants

Reaction Steps

Into a 100 mL round bottom flask was added P-355 (0.55 g, 1.56 mmol), methanol (20 mL), concentrated HCl (0.65 mL, 7.79 mmol), and 10% Pd/C (100 mg). The suspension was stirred under a H2 balloon for 18 hours, then filtered through Celite. The filtrate was concentrated. To the solid was added 1N aqueous NaOH and the product was extracted with dichloromethane. The dichloromethane was concentrated and purified by flash column chromatography eluting with 5-10% methanol/dichloromethane to give P-344 (89 mg, 16%) as a colorless oil. 1H NMR (400 MHz, DMSO-d6) 8.55 (d, J=1.2 Hz, 1H), 8.32 (br s, 3H), 7.71 (dd, J=1.9, 7.9 Hz, 1H), 7.50-7.37 (m, 3H), 7.36 (d, J=5.4 Hz, 2H), 7.27 (d, J=6.6 Hz, 1H), 6.96 (d, J=8.6 Hz, 1H), 4.75 (br s, 2H), 4.14 (q, J=5.8 Hz, 2H), 4.01 (s, 2H), 3.73 (s, 3H) ppm. LC/MS=95.1%, 357.1 (APCI+).

Provenance & Evidence