5-azido-4-(4-methylbenzyl)pentanenitrile

7-methyl-1,5,10,10a-tetrahydropyrrolo[1,2-b]isoquinolin-3(2H)-one

2-(4-Methyl-benzyl)-acrylic acid

(R)-3-Ethylsulfanyl-2-(2-mercaptomethyl-3-p-tolyl-propionylamino)-propionic acid