67198-86-1
(R)-2-氧代四氢呋喃-3-基氨基甲酸叔丁酯
→
~89%
397246-14-9
(R)-(+)-2-(Boc-氨基)-1,4-丁二醇
428440-11-3
diethyl 2-[(2-methylpropan-2-yl)oxycarbonylamino]butanedioate
~69%
130622-08-1
L-t-butoxycarbonylaspartic acid dimethyl ester