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[1]YakugakuZasshi/JournalofthePharmaceuticalSocietyofJapan,1948,vol.68,p.209 Chem.Abstr.,1953,p.8075
[1]JournaloftheAmericanChemicalSociety,1940,vol.62,p.173
[1]JournaloftheAmericanChemicalSociety,1940,vol.62,p.3508,3511