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
1
is a hydrogen or halogen atom or a C
1
-C
6
alkyl group,
R
2
is a hydrogen or halogen atom or a C
1
-C
6
alkyl, C
1
-C
6
hydroxyalkyl, C
3
-C
6
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
1
-C
3
alkyl group, and
R
3
is a hydrogen or halogen atom.
一种改进的制备公式I的6-芳基-4H-s-三唑并[3,4-c]-
噻吩[2,3-e]-1,4-二氮杂
辛烷的方法,其中:R1是氢原子或卤素原子或C1-C6烷基基团,R2是氢原子或卤素原子或C1-C6烷基,C1-C6羟基烷基,C3-C6环烷基团或5-或6-成员含氧,
硫或氮的杂环基团,该基团在氮原子上可选择地被C1-C3烷基基团取代,且R3是氢原子或卤素原子。