| 摘要 |
An improved process for preparing 6-aryl-4H-s-triazolo[3,4-c]-thieno[2,3-e]-1,4-diazepines of formula I, wherein: R<SUP>1 </SUP>is a hydrogen or halogen atom or a C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl group, R<SUP>2 </SUP>is a hydrogen or halogen atom or a C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, C<SUB>1</SUB>-C<SUB>6 </SUB>hydroxyalkyl, C<SUB>3</SUB>-C<SUB>6 </SUB>cycloalkyl group or a 5- or 6-membered oxygen-, sulphur- or nitrogen-containing heterocyclic group which may optionally be substituted at the nitrogen atom by a C<SUB>1</SUB>-C<SUB>3 </SUB>alkyl group, and R<SUP>3 </SUP>is a hydrogen or halogen atom.
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