Separation of N-(2-Pyron-3-yl) glycylglycine from the reaction of dehydroascorbic acid with glycylglycine.

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  • SAKURAI Hidetoshi
    Department of Agricultural Chemistry, College of Agriculture and Veterinary Medicine Nihon University
  • ITO Teiichiro
    Department of Agricultural Chemistry, College of Agriculture and Veterinary Medicine Nihon University
  • ISHII Kenji
    Department of Agricultural Chemistry, College of Agriculture and Veterinary Medicine Nihon University

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Other Title
  • デヒドロアスコルビン酸とグリシルグリシンから生成するＮ‐（２‐ピロン‐３‐イル）グリシルグリシンの分離
  • デヒドロアスコルビンサン ト グリシルグリシン カラ セイセイスル N 2 P

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Description

Dehydroascorbic acid (DHA) and glycylglycine (30 mmol each) were heated in 100ml of water at 90°C for 3 hr. The resulting brown solution was shaken with chloroform, and the aqueous layer was extracted with ethyl acetate. Yellow crystals were isolated from the ethyl acetate extract in 1-2% yields. The crystals were identified as N-(2-pyron-3-yl) glycylglycine by elemental analysis, UV, IR, MS, PMR and CMR spectroscopy. DHA also produced pyrone derivatives with glycylalanine, glycylleucine, alanylglycine, leucylglycine and β-alanylglycine.

Journal

  • Nippon Nōgeikagaku Kaishi

    Nippon Nōgeikagaku Kaishi 63 (10), 1607-1609, 1989

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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