3,5-dimethyl-5,6-dihydrocyclopenta[f][1,3]benzoxazole-2,7-dione

2,3-dihydro-3,7-dimethyl-2,5-dioxocyclopenta(f)benzoxazol

4-(2-氧代哌啶-1-基)丁酸

4-amino-3-(3-hydroxypropyl)-1H-1,2,4-triazole-5-thione

propan-2-yl 3-hydroxypropanoate