申请人:Maeda Hiroshi
公开号:US20090275749A1
公开(公告)日:2009-11-05
Provided is a method of producing optically active 1-methyl-3-phenylpiperazine of the formula (11) or salt thereof, comprising the following steps 1 to 4, or steps 5 to 7 and step 4, and a method of producing optically active mirtazapine via this method.
Step 1,
Step 2,
Step 3,
Step 4,
Step 5,
Step 6,
Step
7
提供了一种制备光学活性的式(11)的1-甲基-3-苯基哌嗪或其盐的方法,包括以下步骤1至4或步骤5至7和步骤4,以及通过该方法制备光学活性米氮平的方法。步骤1,步骤2,步骤3,步骤4,步骤5,步骤6,步骤7。