Shibata , K . , Satsumabayashi , S . , Sano , H . , Komiyama , K . , Nakagawa , A . , Omura , S . ( 1986 b ) Chemical modification of Herbimycin A : synthesis and in vivo antitumor activities of halogenated and other related derivatives of herbimycin A . The Journal of Antibiotics , 39 ( 3 ) , pp 415 - 423 .