[EN] 4'-C-ETHYNYL PURINE NUCLEOSIDES<br/>[FR] NUCLEOSIDES DE PURINE 4'-C-ETHYNYLE
申请人:YAMASA CORP
公开号:WO2000069877A1
公开(公告)日:2000-11-23
The invention provides 4'-C-ethynyl purine nucleosides represented by formula (I), wherein B represents a base selected from the group consisting of purine and derivatives thereof; X represents a hydrogen atom or a hydroxyl group; and R represents a hydrogen atom or a phosphate residue; and a pharmaceutical composition containing any one of the compounds and a pharmaceutically acceptable carrier. Preferably, the composition is used as an anti-HIV agent or a drug for treating AIDS.
1-AMINO-5-HALOGENOURACILS, PROCESS FOR THEIR PREPARATION, AND CENTRAL NERVOUS SYSTEM DEPRESSANTS CONTAINING SAME AS ACTIVE INGREDIENT
申请人:Yamasa Shoyu Kabushiki Kaisha also trading as Yamasa Corporation
公开号:EP0425669A1
公开(公告)日:1991-05-08
The invention relates to central nervous system depressants containing a 1-amino-5-halogenouracil represented by formula (I) (wherein X represents a halogen atom) or its salt as an active ingredient; 1-amino-5-halogenouracils represented by formula (II) (wherein X' represents chlorine, iodine or bromine) or salts thereof; and a process for preparing a 1-amino-5-halogenouracil represented by the above formula (I) from a pyramidine derivative represented by formula (III) (wherein X represents a halogen atom, and R represents a protective group).
本发明涉及含有由式(I)代表的1-氨基-5-卤素尿嘧啶(其中X代表卤素原子)或其盐作为活性成分的中枢神经系统抑制剂;由式(II)代表的1-氨基-5-卤素尿嘧啶(其中X'代表氯、碘或溴)或其盐;以及由式(III)代表的嘧啶衍生物(其中 X 代表卤素原子,R 代表保护基团)制备上式(I)代表的 1-氨基-5-卤代尿嘧啶的工艺。