Amonafide → 618863-54-0

Participants

Reaction Steps

A batch of amonafide L-malate was prepared in accordance with the method of Example I. The material so obtained was 99.4% chromatographically pure on a 10 gram synthetic scale, consistent with previous findings on the larger scale. The material was then converted to the free base amonafide, as follows: 10 grams of the L-malate salt were dissolved in 100 ml distilled water and titrated with vigorous stirring to pH 7 by the addition of ¼ concentrated ammonium hydroxide. The large mass of yellow needles that formed was filtered by suction, washed with water, and recrystalized from ethanol to afford 5.8 gr. Of 99.8% chromatographically pure amonafide free base, mp 172° C. (MW 283.3, 93% yield).

Provenance & Evidence