(4R)-BOC-4-(4-BROMBENZYL)-PYR-OBZL

(4r)-boc-4-(4-bromobenzyl)-l-pyroglutamic acid benzyl ester

Benzyl (2S,4R)-1-Boc-4-(4-bromobenzyl)-5-oxo-2-pyrrolidinecarboxylate, (4R)-Boc-4-(4-bromobenzyl)-L-pyroglutamic acid benzyl ester