Products of ozonolysis of L-1,4-cyclohexadienylalanine. Intramolecular cyclization and cyclization with hydroxylamine. The synthesis of two isomers of L-isoxazolylalanine.

Article abstract of DOI:10.1016/S0040-4020(97)00118-X

Protected L-phenylalanine was reduced to L-1,4-cyclohexadienylalanine followed by ozonolysis of the unsaturated ring. Intramolecular cyclization of the ozonolysis product occurred upon treatment with acid. The cyclization of the product of ozonolysis with