申请人:SUNTORY KABUSHIKI KAISHA,
also known as SUNTORY LTD.
公开号:EP0153855A2
公开(公告)日:1985-09-04
A novel pyrrolizidine derivative of the formula,
has potent antiarrhythmic activity and low toxicity.
The derivative can be synthesized: by acylating 2,6-xylidine to protect the amino group, nitrating the protected xylidine to introduce a nitro group at 3-position, reducing the nitro group to an amino group, followed by diazotizing and hydrolyzing, and then the resulted 3-hydroxy-2,6-dimethylaniline being condensed with 8-halocarbonylmethyl- pyrrolizidine; or by nitrating N-(2',6-'-dimethyi)phenyl-8-pyrrolizidineacetamide to introduce a nitro group at 3'- position, reducing the nitro group to amino group, diazotizing the amino group and hydrolyzing the diazonium compound.
一种新型吡咯烷衍生物具有强效抗心律失常活性和低毒性,其合成方法为:酰化 2,6-二甲基苯胺以保护氨基,硝化被保护的二甲基苯胺以在 3 位引入硝基,将硝基还原为氨基,然后重氮化和水解,最后将生成的 3-羟基-2,6-二甲基苯胺与 8-正羰基甲基-吡咯烷缩合;或硝化 N-(2',6-'-二甲基)苯基-8-吡咯烷乙酰胺以在 3'-位引入硝基,将硝基还原为氨基,重氮化氨基并水解重氮化合物。