FIELD: organic synthesis. SUBSTANCE: 4-dimethyl-4-sulfonyl-7-deoxy-13-dioxolanyl daunomicinone, carbon monoxide being used as reagent 2. Reaction is carried out in the presence of nucleophilic, nitrogen-containing base and catalyst being generated in situ. The process is followed by introduction of α--hydroxy group into thus prepared compound and by removing of 13-dioxolanyle group by acid catalyst. EFFECT: improved efficiency of the method. 3 cl
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