N-(1,2,3,10-tetramethoxy-9-oxo-6,7-dihydro-5H-benzo[a]heptalen-7-yl)butanamide

(2-sulfamoyl-1,3-benzothiazol-5-yl) butanoate

3-methylbutan-2-yl butanoate

2-carbazol-9-ylethyl butanoate

(3-butanoyloxy-2-oxopropyl) butanoate