Acetic Acid → Sodium Chloride

Participants

Reaction Conditions

Reaction Steps

When the doxorubicin peak is less than 0.1%, the reaction mixture is filtered through a coarse sintered glass funnel to remove the beads. A brine solution (at least 30% w/v) of 1.1 kg NaCl in 3.5 L water is prepared and cooled to 0° C. The filtered reaction mixture is then slowly added to the cooled brine solution with vigorous stirring over 45 minutes. The color of the solution must remain red, a blue solution indicates that the pH needs adjustment immediately to between 5.8–6.0 by adding acetic acid. The red precipitate is filtered through a medium sintered glass funnel, washed with water and dried under vacuum pressure over P2O5 to yield MeOSuc-Leu-Ala-Leu-Dox free of any residual doxorubicin.

Provenance & Evidence