The calicheamicins, a family of extremely potent antitumor antibiotics
LEE M.D;DUNNE T.S;CHANG C.C;SIEGEL M.;MORTON G.O;ELLESTAD G.E;MCGAHREN W.J;BORDERS D.B
Chin. J. Org. Chem. . 1993, (2): 166 -170 .