7-substituted oxa- or azasteroid compound

7-Substituted PGI.sub.2 -derivatives and pharmaceutical composit

7-Substituted quinazolin-2,4-diones useful as antibacterial...

7-substituted quinazolin-2,4-diones useful as antibacterial...

7-substituted quinolones and naphthyridones as antibacterial age

7-substituted quinolones and naphthyridones as antibacterial age

7-substituted quinolones and naphthyridones as antibacterial age

7-substituted quinolones and naphthyridones as antibacterial age

7-substituted quinolones and naphthyridones as antibacterial age

7-substituted quinone methides as inhibitors for unsaturated mon

7-substituted quinone methides as inhibitors for unsaturated mon

7-substituted quinone methides as inhibitors for unsaturated mon

7-substituted tetracycline compounds

7-Substituted triol derivatives of acid S, an antibiotic produce

7-substituted-.delta.4-6-azasteroid derivatives as 5.alpha.-redu

7-Substituted-2-indolinones

7-Substituted-2-oxa-7-azabicyclo [3.2.0.]heptan-6-one compound a

7-Substituted-3-aminoalkyl-, acylaminoalkyl-, or hydroxyalkyl-su

7-Substituted-3-cephem-4-carboxylic acid esters

7-Substituted-3-vinyl-3-cephem compounds and processes for produ