申请人:Toray Fine Chemicals Co., Ltd.
公开号:EP1548010A1
公开(公告)日:2005-06-29
If an organic solvent with a water content of 15% or less is used when an oxycarbonyl-substituted piperazine derivative is produced from a piperazine derivative, the piperazine derivative can be oxycarbonylated.
如果在用哌嗪衍生物生产氧羰基取代的哌嗪衍生物时,使用含水量不超过 15%的有机溶剂,则哌嗪衍生物可以被氧羰基化。