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[1]LiebigsAnnalenderChemie,1985,vol.1985,p.785-793
[2]TetrahedronLetters,1982,vol.23,p.4911-4914
[3]ChemischeBerichte,1955,vol.88,p.370,373
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[1]JournaloftheChemicalSociety,1954,p.3403,3406
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