Patents
Patents for C07D 521 - Heterocyclic compounds containing unspecified hetero rings (16,203)
01/1976
01/20/1976US3933800 New 3-formylrifamycin SV derivatives
01/13/1976US3932444 4-Imidazolylsulfonylimidazoles
01/06/1976US3931220 β-Phenyl-β-azolyl-nitroethanes