(2S,4R)-N-tert-butyloxycarbonyl-2-hydroxymethyl-4-methylpyrrolidine

(2S,4R)-N-tert-butoxycarbonyl-4-methylproline methyl ester

二碳酸二叔丁酯

Boc-反-4-羟基-L-脯氨酸醇

Boc-L-羟脯氨酸