(3S-(1(2R*,4R*),3R*,4S*,5R*))-N-(1-(N-(4-((3-Hydroxy-5-methyl-4-((N-(N-methyl-D-leucyl)-L-threonyl)amino)-1-oxoheptyl)oxy)-2,5-dimethyl-1,3-dioxohexyl)-L-leucyl)-L-prolyl)-N,O-dimethyl-L-tyrosine phi-lactone 15H-Pyrrolo(2,1-f)(1,15,4,7,10,20)dioxatetraazacyclotricosine, cyclic peptide deriv. 77327-04-9 Didemnin A Didemnin D Didemnin E L-Tyrosine, N-(1-(N-(4-((3-hydroxy-5-methyl-4-((N-(N-methyl-D-leucyl)-L-threonyl)amino)-1-oxoheptyl)oxy)-2,5-dimethyl-1,3-dioxohexyl)-L-leucyl)-L-prolyl)-N,O-dimethyl-, phi-lactone, (3S-((2R*,4R*),3R*,4S*,5R*))- NSC 325319 NSC 351910 Oncoprecipitin A didemnins