2，5-Dioxopyrrolidin-1-yl 5-((4-(1，2，4，5-tetrazin-3-yl)benzyl)amino)-5-oxopentanoate

2，5-Dioxopyrrolidin-1-yl 5-((4-(1，2，4，5-tetrazin-3-yl)benzyl)amino)-5-oxopentanoate ≥90%