[1]JournalofOrganicChemistry,1953,vol.18,p.1484,1487
[1]JournaloftheAmericanPharmaceuticalAssociation(1961),1954,vol.43,p.625-628
[1]JournaloftheAmericanPharmaceuticalAssociation(1961),1954,vol.43,p.625-628
[1]Patent:US2748125,1954,
[1]Patent:US2672460,1952,