申请人:Makarov Vadim A.
公开号:EP2380886A1
公开(公告)日:2011-10-26
A process for preparing 2-aminosubstituted 1,3-benzothiazine-4-ones is provided which comprises the following step:
wherein Y is halogen;
R is independently selected from C1-6-alkyl which may optionally be substituted by halogen, -NO2, halogen, -CHO -COOR4 (wherein R4 is hydrogen or C1-6-alkyl) and -CN;
R3 is C1-3-alkyl which may be substituted by halogen;
X is halogen; and
n is 0 or an integer of 1 to 4; if n is 2, 3 or 4, multiple Rs may be the same or different.
提供了一种制备2-氨基取代的1,3-苯并噻嗪-4-酮的方法,包括以下步骤:其中Y是卤素;R独立地选自C1-6-烷基,该烷基可以选择性地被卤素、-NO2、卤素、-CHO、-COOR4(其中R4是氢或C1-6-烷基)和-CN取代;R3是C1-3-烷基,可以被卤素取代;X是卤素;n为0或1至4的整数;如果n为2、3或4,多个R可能相同也可能不同。