1,4-Dioxane hydrochloride → HCID 44453209, compound

Participants

Reaction Steps

A mixture of Example 476H (429 mg, 0.8 mmol) in methylene chloride (20 mL) and methanol (10 mL) was treated with 4N HCl/dioxane (1 mL, 4.0 mmol) and stirred one hour at room temperature. The mixture was concentrated under vacuum to provide 325 mg (quantitative) of desired product. MS (ESI) m/e 408 (M+H)+; 1H NMR (300 MHz, DMSO-d6) □ 9.57 (s, 1H), 8.89 (s, 1H), 8.01 (d, J=8.1 Hz, 1H), 7.76 (d, J=8.1 Hz, 1H), 7.65 (s, 1H), 7.51 (d, J=1.7 Hz, 1H), 7.26-7.35 (m, 3H), 6.59 (s, 1H), 6.52 (s, 1H), 4.03 (s, 3H), 3.67 (s, 3H).

Provenance & Evidence