11-Oxodibenz(b,e)azepines

A compound of claim 1, which is a compound of the formula ##STR76## wherein R.sub.11 is alkyl of 1 to 4 carbon atoms, R.sub.21 is hydrogen, chlorine, bromine or nitro, R.sub.31 is hydrogen, chlorine or bromine, R.sub.41 is hydrogen or methyl, and B is as defined in claim 56;

• or a pharmaceutically acceptable salt of the compound wherein B is hydroxyl.

A compound of the formula ##STR82## wherein R.sub.o represents hydrogen or alkyl of up to 6 carbon atoms, R.sub.2 represents hydrogen, halogen or nitro, R.sub.3 represents hydrogen or halogen, and R.sub.4 represents hydrogen or alkyl of up to 6 carbon atoms, and when R.sub.o represents hydrogen R.sub.2, R.sub.3 and R.sub.4 all represent hydrogen and the group ##STR83## is present at the 2-position;

• and B represents hydroxyl, --OR'.sub.104 or --NHR'.sub.105 wherein R'.sub.104 is alkyl of up to 6 carbon atoms, mono- or di-hydroxy alkyl of up to 6 carbon atoms, alkoxyalkyl in which each of the alkoxy and alkyl groups have up to 6 carbon atoms, or 2,2-dimethyl-1,3-dioxolan-5-yl alkyl of up to 6 carbon atoms in the alkyl group, and R'.sub.105 is hydrogen, hydroxyl, amino, alkyl of up to 6 carbon atoms or hydroxy alkyl of up to 6 carbon atoms, or a pharmaceutically acceptable salt of the compound wherein B is hydroxyl.

A compound of the formula ##STR84## or an alkali metal salt, an alkaline earth metal salt, an aluminum salt or a C.sub.1 -C.sub.6 alkyl ester of said compound.

A compound of the formula ##STR85## wherein R.sub.103 is hydrogen, alkyl of up to 6 carbon atoms, or aralkyl or 7 to 20 carbon atoms.