Condensation product of triose reductone with glycine, leucine, methionine and phenylalanine were prepared with yielding of about 40-50%. Their properties were explained by estimating elementary analysis, melting point, paper chromatogram, polarogram and UV-, IR- and NMR-spectra. For paper chromatography, butanol·acetic acid·water and ethanol.water are fairly suitable as solvent. Absorption peak was estimated at 305～315 nm in acid and neutral media and at 340～345 nm in alkaline medium. The peak was maintained in the former, but decreased in the latter, indicating unstability of TR-AA in alkaline medium. In IR-spectra, common typical peaks were observed at 3400 cm^-1 (NH), 2400 cm^-1 (enolic OH), 1720 cm^-1 (CO of carbonic acid) and 1650 cm^-1 (CO of aldehyde), coinciding with literature. Porlarograms of TR and TRAA was estimated at about +0.2 V of half-wave potential, but with different waveheight. By detailed investigation on NMR-spectra, chemical structure of TR-AA was demonstrated.
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