反应详情

A solution of 2-[[(4S,5R)-5-[(1E,3E,7E,9S)-9-hydroxy-10-(4-fluorophenoxy)-1,3,7-decatrien-5-ynyl]-2,2-dimethyl-1,3-dioxolan-4-yl]methoxy]ethanoic acid, methyl ester, (1.1 g, 1.8 mmol) in methanol (25 mL) was treated with 1 mL of 1 N hydrochloric acid and the reaction was stirred for 2 days. The pH of the reaction was adjusted to neutrality. Purification on preparative reverse phase semi-prep column using a gradient of acetonitrile in water yielded 1.1 g of (5S,6R,7E,9E,13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-3-oxahexadeca-7,9,13-trien-11-ynoic acid, methyl ester, as an oil; 1H NMR (CDCl3) δ 3.67 (m, 2H), 3.75 (s, 3H), 3.83 (m, 1H), 3.95 (m, 1H), 4.13 (m, 2H), 4.37 (m, 1H), 4.58 (m, 1H), 5.73 (dd, 1H), 5.86 (dd, 1H), 6.04 (dt, 1H), 6.17 (m, 1H), 6.40 (m, 1H), 6.58 (m, 1H), 6.9 (m, 4H) ppm.

1. customPurification on preparative reverse phase semi-prep column