Sodium Bicarbonate → HCID 13505217, compound

Participants

Reaction Steps

Under argon, 720 mg (2 mmol) of 6-iodo-4-methyl-β-carboline-3-carboxylic acid ethyl ester is heated in a pressure vessel with 202 mg (2.4 mmol) of sodium bicarbonate, 75 mg (0.42 mmol) of palladium dichloride, and 705 mg (8 mmol) of butenediol in 10 ml of N-methylpyrrolidone for 2 hours to 150° C. After filtration and concentration, the mixture is distributed in ethyl acetate/water. The aqueous phase is extracted twice with ethyl acetate, the combined organic phases are dried, filtered, and concentrated. The residue is chromatographed over silica gel with toluene:ethanol=80:40 as the eluent. Recrystallization of the corresponding fractions from ethyl acetate/diisopropyl ether yields 185 mg (26% of theory) of 6-(2-hydroxytetrahydrofuran-4-yl)-4-methyl-β-carboline-3-carboxylic acid ethyl ester, mp 177°-180° C.

Provenance & Evidence