132623-07-5
→
~97%
132622-80-1
(2R,4s)-1-(叔丁氧基羰基)-4-氰基吡咯烷-2-羧酸
77450-00-1
(2R,4R)-4-hydroxyproline-1,2-dicarboxylic acid 1-tert-butyl 2-ethyl ester