申请人:Nippon Suisan Kaisha, Ltd.
公开号:EP1026153A1
公开(公告)日:2000-08-09
Efficient synthesis of diaryl sulfide derivatives useful as intermediates for pharmaceutical compounds. Provision of a convenient process for producing large quantities of dibenzo[b,f]thiepine derivatives using such intermediates.
Halogen-substituted phenyl derivatives of the general formula (1):
(where X is a halogen atom and R1 - R5 is any substituent selected from among hydrogen, a lower alkyl group, a lower cycloalkyl group, an aryl group, a halogen atom, a lower alkoxyl group, an amino group, an N-lower acylamino group, a nitro group, a lower alkylthio group and a carboxyl group) are reacted with disulfide derivatives of the general formula (2):
(where R6 - R10 is any substituent selected from among hydrogen, a lower alkyl group, a lower cycloalkyl group, an aryl group, a halogen atom, a lower alkoxyl group, an amino group, an N-lower acylamino group, a nitro group, a lower alkylthio group and a carboxyl group) in the presence of metal catalysts to form a sulfide bond, thereby producing diaryl sulfide derivatives of the general formula (3):
(where R1 - R10 are the same as defined above) or salts thereof. Pharmaceutical compounds such as dibenzo[b,f]thiepine derivatives are produced from the diaryl sulfide derivatives or salts thereof by known techniques.
高效合成可用作医药化合物中间体的二芳基硫醚衍生物。提供一种利用此类中间体生产大量二苯并[b,f]硫杂卓衍生物的便捷工艺。
通式(1)的卤素取代苯基衍生物:
(其中 X 是卤素原子,R1 - R5 是选自氢、低级烷基、低级环烷基、芳基、卤素原子、低级烷氧基、氨基、N-低级酰氨基、硝基、低级烷硫基和羧基中的任何取代基)与通式(2)的二硫化物衍生物反应:
(其中 R6 - R10 是选自氢、低级烷基、低级环烷基、芳基、卤素原子、低级烷氧基、氨基、N-低级酰氨基、硝基、低级烷硫基和羧基中的任何取代基)在金属催化剂存在下与通式(2)的二硫醚衍生物反应形成硫化键,从而生成通式(3)的二芳基硫醚衍生物:
(其中 R1 - R10 与上述定义相同)或其盐类。通过已知的技术,可从二芳基硫醚衍生物或其盐中制取二苯并[b,f]硫杂卓衍生物等药物化合物。