desepoxyarenastatin A

(2S,1''S,2''R,1''''R)-1''-[3'''-({1''''-[(tert-butoxy)carbonyl]-2''''-(p-methoxyphenyl)ethyl}carbamoyl)allyl]-2''-methyl-4''-phenylbut-3''-enyl 2-[(3'-{[(tert-butoxy)carbonyl]amino}propionyl)oxy]-4-methylpentanoate