反应详情

Daunorubicin hydrochloride (0.4 g.) is dissolved in ethanol (60 cc.) containing 2.5% of acetic acid, and thiosemicarbazide (0.135 g.) is then added. The resulting mixture is heated for 12 hours to 45°C. with stirring, then evaporated to dryness under reduced pressure, and the residue is taken up in water (50 cc.). The resulting solution is lyophilised to give 4-methoxy-5- (or 12-) oxo-6,9,11-trihydroxy-7-(2,3,6 -O-tridesoxy-3-amino-1-L-lyxohexosyl)-9-[1-(thiosemicarbazono)ethyl]-12- (or 5-) (thiosemicarbazono)-5,7,8,9,10,12-hexahydro-naphthacene hydrochloride (0.476 g.) in a yield of 89%.

1. additionis then added
2. temperatureThe resulting mixture is heated for 12 hours to 45°C.
3. customevaporated to dryness under reduced pressure