Methyl 5-[[1-[(5-fluoro-1-methoxy-1,4-dioxopentan-3-yl)amino]-3-methyl-1-oxopentan-2-yl]amino]-4-[[3-methyl-2-(phenylmethoxycarbonylamino)butanoyl]amino]-5-oxopentanoate [ 210344-96-0 ]