Synonyms: Azetomycin I;NSC244392;Actinomycin Az.beta.;3'-Azetidine-3'-proline-actinomycin;Actinomycin D, 3A-(2-azetidinecarboxylic acid)-;ACTINOMYCIN ANALOG AZETIDINE I;AC1L8MEM;ACTINOMYCIN AZETIDINE II;59519-94-7;NSC267029;NSC 267029;NSC-244392;NSC-267029;Actinomycin D, 3a(or 3b)-(2-acetidinecarboxylic acid)-;Actinomycin D, 3(A)(or 3(B))-(2-azetidinecarboxylic acid)-;2-amino-4,6-dimethyl-3-oxo-9-N-[7,11,14-trimethyl-2,5,9,12,15-pentaoxo-3,10-di(propan-2-yl)-8-oxa-1,4,11,14-tetrazabicyclo[14.3.0]nonadecan-6-yl]-1-N-[7,11,14-trimethyl-2,5,9,12,15-pentaoxo-3,10-di(propan-2-yl)-8-oxa-1,4,11,14-tetrazabicyclo[14.2.0]octadecan-6-yl]phenoxazine-1,9-dicarboxamide