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A series of novel optically pure oxime pseudoesters derivatives were synthesized by the reaction of substitute keto oximes with various N-substituted α-amino acids chlorides in the presence of triethylamine and dichloromethane at 0 °C, and their structures were characterized by IR and 1D-NMR methods. The synthesized compounds were tested for their ability to inhibit the proliferation of human colon cancer cells and human epithelial cells. Some of them were revealed to have a significant cytotoxic effect.

An efficient and rapid synthesis of a new class of chiral oxime ethers has been achieved via two-step reaction in which the first step is the reaction of oximes 1a-f with ethyl bromoacetate in the presence of sodium hydride to give oxime ethers 2a-f which are subsequently, in the second step, reacted with different commercially available chiral amines under microwave irradiation conditions to give compounds 3a-l in good to excellent yields. Through this method, we have observed a decrease in reaction time and excellent yields than the previously described conventional method.

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