65519-02-0 Boc-(val-val)4-och3 D-Valine, N-(N-(N-(N-(N-(N-(N-(N-((1,1-dimethylethoxy)carbonyl)-L-valyl)-D-valyl)-L-valyl)-D-valyl)-L-valyl)-D-valyl)-L-valyl)-, methyl ester tert-Butyloxycarbonylvalyl-valyl-valyl-valyl-valyl-valyl-valyl-valine methyl ester