%0 Journal Article %T A Simple Method for Synthesis of Active Esters of Isonicotinic and Picolinic Acids %A J£¿rn B. Christensen %J Molecules %D 2001 %I MDPI AG %R 10.3390/60100047 %X A method for preparation of the p-nitrophenyl-, N-hydroxysuccinimidyl- and pentafluorophenyl esters of isonicotinic and picolinic acids from the corresponding acids is reported. %K Active esters %K pyridine carboxylic acids %U http://www.mdpi.com/1420-3049/6/1/47