3,5-dioxo-5-phenylpentanoic acid

(4-amino-2-methyl-5-phenyl-1H-pyrrol-3-yl)-phenylmethanone

1-phenyl-3-(propylamino)but-2-en-1-one

2-pentyl-1-phenylbutane-1,3-dione

1,8-diphenyloctane-1,3,6,8-tetrone