Process for preparing compounds of the diaminophenothiazinium type of formula (II) below. The products have a high degree of purity and are useful for the preparation of medicaments.
In which the R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
and R
10
groups having the same definition as in formula (I), and R representing a group chosen from:
a phenyl or benzyl group, optionally substituted with one or more functions chosen from: a C
1
-C
4
alkyl, a halogen atom, a C
1
-C
4
haloalkyl and a nitro group,
a linear, branched or cyclic C
1
-C
8
alkyl group,
a C
1
-C
8
alkylamino group,
a C
1
-C
8
alkoxy group,
a phenyloxy or benzyloxy group optionally substituted on the aromatic nucleus with one or more functions chosen from: a C
1
-C
4
alkyl, a halogen atom, a C
1
-C
4
haloalkyl and a nitro group,
Z representing an atom chosen from O and S.
制备二
氨基
苯并噻唑型化合物的过程如下式(II)。所得产物具有高度纯度,适用于制备药物。其中,R1、R2、R3、R4、R5、R6、R7、R8、R9和R10基的定义与式(I)相同,R代表从以下选取的基团:苯基或苄基,可选择一个或多个官能团进行取代,所选官能团包括C1-C4烷基、卤素原子、C1-C4卤代烷基和硝基;线性、支链或环状C1-C8烷基;C1-C8烷基
氨基;C1-C8烷氧基;苯氧基或苄氧基,可选择一个或多个在芳香核上的官能团进行取代,所选官能团包括C1-C4烷基、卤素原子、C1-C4卤代烷基和硝基;Z代表从O和S中选取的一个原子。