Diisopropylamine → methyl 4'-[2-[[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]-amino]ethoxy]-3-(isopropylthio)-4-biphenylcarboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-[(1R,2S)-2-amino-1-hydroxypropyl]-phenol (75.4 mg) in N,N-dimethylformamide (1 ml) were added diisopropylamine (72.9 μl) and methyl 4′-(2-bromoethoxy)-3-(isopropylthio)-4-biphenylcarboxylate (142 mg) in N,N-dimethylformamide (0.4 ml) at room temperature and stirred at 100° C. for 4 hours. The reaction mixture was diluted with ethyl acetate and washed with saturated sodium bicarbonate aqueous solution, water and brine, dried over magnesium sulfate and concentrated in vacuo. The residue was purified with silica gel column chromatography to give methyl 4′-[2-[[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]-amino]ethoxy]-3-(isopropylthio)-4-biphenylcarboxylate (113 mg).

Provenance & Evidence