Reductive N, N-dialkylation of daunorubicin with 2, 2'-oxydiacetaldehyde and NaBH3CN occurred in two steps without interruption and with cyclization to form 3'-(4-morpholinyl)-3'- deaminodaunorubicin. This derivative retained the antitumor efficacy of doxorubicin against mouse leukemia P388 but at one-fortieth the dose; hence, it is the most potent anthracycline analogue synthesized so far. The 4-methoxy-1-piperidinyl derivative, similarly prepared ...
[Aparicio, F. J. Lopez; Gonzalez, F. Santoyo; Mendoza, P. Garcia; Mateo, F. Hernandez; Martinez, J. A. Dominguez Carbohydrate Research, 1986 , vol. 152, p. 99 - 112]