Synonyms: Pyrrolo[1,2-d][1,4,7,10,13,16]oxapentaazacyclononadecine-1,4,7,10,14,17(11H,16H)-hexone,3-sec-butyldodecahydro-16-isobutyl-6-isopropyl-5,8,9-trimethyl- (7CI);Pyrrolo[1,2-d][1,4,7,10,13,16]oxapentaazacyclononadecine, cyclic peptidederiv.; Cyclo[N-methyl-L-alanyl-b-alanyl-(2R)-2-hydroxy-4-methylpentanoyl-L-prolyl-L-isoleucyl-N-methyl-L-valyl];NSC 236580; SB 242536