[1]JournalofMedicinalChemistry,1983,vol.26,p.1267-1277
[1]JournalofMedicinalChemistry,1987,vol.30,p.992-998
[2]Patent:US4350704,1982,A
[1]JournalofMedicinalChemistry,1982,vol.25,p.250-258
[1]CurrentPatentAssignee:TEVAPHARMACEUTICALINDUSTRIESLTD.-US4461896,1984,A
[1]Patent:US4199512,1980,A