Diisopropylethylamine → 6-[1-hydroxy-2-(4-{[4-(1H-tetrazol-1-yl)phenyl]acetyl}piperazin-1-yl)ethyl]-3-methyl-3,4-dihydro-1H-isochromen-1-one

Participants

Reaction Steps

A sealed tube containing 3-methyl-6-(oxiran-2-yl)-3,4-dihydro-1H-isochromen-1-one (72 mg, 35 mmol), 1-(piperazin-1-yl)-2-[4-(1H-tetrazol-1-yl)phenyl]ethanone hydrochloride (109 mg, 0.35 mmol), DIEA (0.2 mL) and EtOH (3 mL) was heated to 80 C for 12 hours. The excess solvent was removed and the crude product purified via MPLC (35% EtOAc/Hex-60% EtOAc/Hex) to give 6-[1-hydroxy-2-(4-{[4-(1H-tetrazol-1-yl)phenyl]acetyl}piperazin-1-yl)ethyl]-3-methyl-3,4-dihydro-1H-isochromen-1-one. LC-MS (IE, m/z): 477 [M+1]+.

Provenance & Evidence