Since you want optically active derivatives, you can resolve the racemic mixture into individual enantiomers. This can be achieved using chiral chromatography or other methods for enantiomer separation.
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(4R,5R)-4-acetoxy-7-chloro-5-methoxymethoxy-1-(p-toluenesulfonyl)-2,3,4,5-tetrahydro-1H-1-benzazepine
(R)-2-{(R)-2-[(3-Trifluoromethyl-phenylamino)-methyl]-piperidin-1-yl}-propionic acid ethyl ester
Ethyl 2-bromopropionate
