| http://www.w3.org/ns/prov#value | - Pyridine derivatives, 1,2,3,4-tetrahydropyridine derivatives and salts thereof as claimed in claim 2, wherein R1 is an unsubstituted or substituted 6- or 7-membered heterocyclic group having at least one nitrogen atom.III. The Examining Division held that the subject-matter of Claim 1 was novel, but that it did not involve an inventive step in the light of the cited documents(1) EP-A-0 030 254,(3
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