(2S,4R)-2-(4-tolyl)-4-carboxy-1,3-thiazolidine

N-[(E)-(4-methylphenyl)methylideneamino]acetamide

(4-Methylphenyl)(1-pyrrolidinyl)methanone

dimethyl 2-[(4-methylphenyl)methylidene]propanedioate

5-p-Methylbenzylidene-2-thiobarbituric acid