(R)-1,3-hydroxybutyl(R)-3-hydroxybutanoate

(R)-(-)-1,3-Butanediol

(R)-3-Hydroxybutanoic acid

β-Aminoisobutyricacid（BAIBA）

Cefpodoxime acid

7-AMCA

2-Thiopheneethanol

DL-4-Chlorophenylglycine

Ethyl (R)-(+)-4-chloro-3-hydroxybutyrate