7a-methoxycephalosporin compounds
7h-8,9-dihydro-pyrano (2,3-c) imidazo (1,2a) pyridine...
7h-benzo¬b|pyrazino¬1,2-d|pyrrolo¬3,2,1-jk|¬1,4|...
7h-dibenzo[b,g][1,5]dioxocin-5-one derivatives and use thereof
7h-indolo[2,1-a] [2] benzazepine-10-carboxylic acid...
7h-pyrido[3,4-d]pyrimidin-8-ones, their manufacture and use...
7h-pyrrolopyrimidine derivatives
7h-pyrrolo[2,3-d]pyrimidine derivatives, as well as their...