Dibenz[b,e]oxepin compounds

A compound selected from the group consisting of 6,11-dihydrodibenz[b,e]oxepins having the structural formulae:

• ##STR29## wherein R.sub.2 and R.sub.3 are the same or different and are members selected from the group consisting of hydrogen, halogen, nitro, amino, N-lower alkylamino, N,N-dilower alkylamino, lower alkanoyl, hydroxy, lower alkoxy, lower alkylthio, trifluoromethylthiol, lower alkylsulfinyl, lower alkylsulfonyl and trifluoromethyl;
• and where R.sub.2 and R.sub.3 are on adjacent carbon atoms at positions 8 and 9 or 2 and 3, R.sub.2 and R.sub.3, taken together, are methylenedioxy;
• R.sub.4 is a member selected from the group consisting of hydrogen, hydroxy, loweralkoxy, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, phenylthio, amino, formamido, and 1-imidazolyl;
• R.sub.5 is a member selected from the group consisting of hydrogen and lower alkyl;
• R.sub.4 and R.sub.5, taken together, are a member selected from the group consisting of .dbd.O and .dbd.CH-R.sub.7 wherein R.sub.7 is a member selected from the group consisting of hydrogen and phenyl;
• and
• R.sub.1 is a member selected from the group consisting of 5-tetrazolyl and carboxy;
• with the proviso that R.sub.1 is not 5-tetrazolyl, carboxy or carboxamido when R.sub.4 and R.sub.5, taken together, are .dbd.O and R.sub.2 and R.sub.3 are hydrogen;
• and the pharmaceutically acceptable salts thereof.