Z-Pyr-OSu
(S)-1-Benzyl 2-(2,5-dioxopyrrolidin-1-yl) 5-oxopyrrolidine-1,2-dicarboxylate ;1-O-benzyl 2-O-(2,5-dioxopyrrolidin-1-yl) (2S)-5-oxopyrrolidine-1,2-dicarboxylate
Z-Pyr-OSu
(S)-1-Benzyl 2-(2,5-dioxopyrrolidin-1-yl) 5-oxopyrrolidine-1,2-dicarboxylate ;1-O-benzyl 2-O-(2,5-dioxopyrrolidin-1-yl) (2S)-5-oxopyrrolidine-1,2-dicarboxylate