Diisopropylcarbodiimide → 11-{4-[3-[3-(4-Fluorophenyl)-3-hydroxypropyl]-2-(4-methoxyphenyl)-4-oxoazetidin-1-yl]benzylcarbamoyl}undecanoic acid

Participants

Reaction Steps

A solution of 70 mg of 1-(4-aminomethylphenyl)-3-[3-(4-fluorophenyl)-3-hydroxypropyl]-4-(4-methoxyphenyl)azetidin-2-one (5), and 23 μl of triethylamine in 1 ml of dimethylformamide was added to a solution of 371 mg of dodecanedioic acid, 63 μl of diisopropylcarbodiimide, 55 mg of hydroxybenzotriazole in 2 ml of dimethylformamide, and the mixture was stirred at room temperature for 12 h. The reaction solution was concentrated and separated by HPLC (Knauer Eurospher-100-10-C18, water (0.1% trifluoroacetic acid)/acetonitrile (0.1% trifluoroacetic acid)=80/20->10/90). This gave the product of molecular weight 646.81 (C38H47F1N2O6); MS (ESI) 647.35 (M+H+)

Provenance & Evidence