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[1]Faltis;Dieterich[ChemischeBerichte,1934,vol.67,p.231]
[1]Tomitaetal.[YakugakuZasshi/JournalofthePharmaceuticalSocietyofJapan,1944,vol.64,p.164,167][Chem.Abstr.,1951,p.448]
[1]Zincke;Francke[JustusLiebigsAnnalenderChemie,1896,vol.293,p.190]
[1]Inubushi;Amano[YakugakuZasshi/JournalofthePharmaceuticalSocietyofJapan,1952,vol.72,p.1459][Chem.Abstr.,1953,p.8040]