上游原料
1-Chloro-2-isocyanatoethane; 2-Chloroethyl isocyanatebenzyl 2,6-dioxo-3-piperidinylcarbamate3-amino-2,6-piperidinedione；3-aminopiperidine-2,6-dione；2-amino-Glutarimide；Glutamimide;a-AminoglutarimideN-(2-chloroethyl)-N'-(2,6-dioxo-3-piperidinyl)ureaN(2)-[(benzyloxy)carbonyl]glutaminemethyl 5-amino-2-[[(benzyloxy)carbonyl]amino]-5-oxopentanoate
