SEARCH Articles Figures Tables Diphenyl Phosphorazidate peptide synthesis Diphenyl Phosphorazidate ring contraction reactions Diphenyl phosphorazide , Yamada Diphenyl phosphorazide , Yamada peptides Diphenylphosphoryl azide: Phosphorazidic acid, diphenyl ester Phosphorazidate Phosphorazidates diphenyl phosphorazidate Phosphorazidic acid, diphenyl ester