| abstract |
Oxazinobenzazole derivatives represented by the following general formula and salts thereof: wherein R<1>, R<2>, R<3> and R<9> are the same or different and selected from hydrogen atoms and C1-C6 alkyl groups; R<5> and R<6> form, in conjunction with the two adjacent carbon atoms, a 5- or 6-membered heterocyclic ring having at least two nitrogen atoms and optionally a further heteroatom selected from oxygen, sulphur and nitrogen; and m is 0 or 1. The compounds are useful as antispasmodic medicaments. |