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[1]Farmaco,EdizioneScientifica,1980,vol.35,p.951-964
[1]JournalofMedicinalChemistry,1992,vol.35,p.3429-3447
[1]ChemicalandPharmaceuticalBulletin,1985,vol.33,p.1104-1115
[1]ChemicalandPharmaceuticalBulletin,1985,vol.33,p.1116-1128
[2]Patent:US4344945,1982,A
[3]Patent:US4344948,1982,A