(2R,3R)-2,3-dihydroxybutanedioic acid,(2R)-piperidine-2-carboxylic acid

N-acetyl-D-2-amino-6-bromohexanoic acid

3,4-二氢-2H-吡喃

(2R,1'R)-6-hydroxy-2-(1'-phenylethylamino)hexanenitrile

(S,S)-pseudoephedrine D-pipecolinamide