77327-04-9 Didemnin A 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-[1(2R*,4R*),3R*,4S*,5R*]]- NSC351910