166941-71-5
→
~35%
166941-66-8
(2S,5S)-5-苯基吡咯烷-2-甲酸乙酯
194594-24-6
5-甲氧基吡咯烷-1,2-二羧酸-(2S)-1-叔丁基-2-乙酯
194594-23-5
1-O-tert-butyl 2-O-ethyl (2S)-5-hydroxypyrrolidine-1,2-dicarboxylate
144978-35-8
Boc-D-焦谷氨酸乙酯