申请人:Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
公开号:US05773607A1
公开(公告)日:1998-06-30
2'-Deoxy-2'-fluorocoformycin and 2'-deoxy-8-epi-2'-fluorocoformycin are synthesized in this invention through a multi-stage process via 3,5-di-O-benzoyl-2-deoxy-2-fluoro-.alpha.- and -.beta.-D-ribofuranosyl bromides. Further, according to this invention, 2'-deoxy-2'-epi-2'-fluorocoformycin and 2'-deoxy-8,2'-diepi-2'-fluorocoformycin are synthesized by a multi-stage process starting from 3,5-di-O-benzoyl-2-deoxy-2-fluoro-.alpha.-D-arabinofuranosyl bromide. These four 2'-fluoro derivatives of coformycin are novel compounds and have high enzyme-inhibitory activities against adenosine deaminase. In particular, these novel compounds are useful substances which exhibit therapeutic effects on acute lymphocytic leukemias due to their high enzyme-inhibitory activities above-mentioned. In addition, a variety of intermediates are obtained as novel compounds which are useful for the synthesis of the aforesaid novel 2'-fluoro derivatives of coformycin.
本发明通过经过多阶段的过程,通过3,5-二-O-苯甲酰基-2-脱氧-2-氟-.alpha.-和-.beta.-D-核糖溴化物合成了2'-脱氧-2'-氟可酶霉素和2'-脱氧-8-表-2'-氟可酶霉素。此外,根据本发明,从3,5-二-O-苯甲酰基-2-脱氧-2-氟-.alpha.-D-阿拉伯核糖溴化物开始,通过多阶段过程合成了2'-脱氧-2'-表-2'-氟可酶霉素和2'-脱氧-8,2'-双表-2'-氟可酶霉素。这四种2'-氟可酶霉素衍生物是新化合物,并且对腺苷脱氨酶具有高的酶抑制活性。特别是,这些新化合物是有用的物质,因为它们具有上述高酶抑制活性,对急性淋巴细胞白血病具有治疗作用。此外,还获得了多种中间体作为新化合物,这些中间体对于合成上述新的2'-氟可酶霉素衍生物是有用的。