开发了一种有效且温和的方法,使用易于获得的卤化钾盐和高价碘( III )试剂在环境温度下对吡唑并[1,5- a ]嘧啶进行区域选择性直接C3卤化。该方案既实用又环保,利用水作为绿色溶剂,卤化钾作为廉价且稳定的卤素源,PIDA作为无毒试剂,可在室温下实现清洁高效的卤化。该程序以良好至优异的产率产生一系列 C3 卤代吡唑并[1,5- a ]嘧啶。机理研究表明亲电取代机制参与卤化过程。
Pyrazolopyrimidine and pyrimidinyl bisphosphonic esters as anti-inflammatories
申请人:THE UPJOHN COMPANY
公开号:EP0521622A1
公开(公告)日:1993-01-07
Compounds useful in the treatment of inflammation structurally represented as
wherein X is O or S and the R groups are as herein defined. The compounds are useful as anti-inflammatory and anti-arthritic agents without inhibiting prostaglandin synthesis.
有助于治疗炎症的化合物,其结构形式为
其中 X 是 O 或 S,R 基团如本文所定义。这些化合物可用作抗炎和抗关节炎药物,但不会抑制前列腺素的合成。
PYRAZOLOPYRIMIDINE AND PYRIMIDINYL BISPHOSPHONIC ESTERS AS ANTI-INFLAMMATORIES
申请人:PHARMACIA & UPJOHN COMPANY
公开号:EP0593575B1
公开(公告)日:1997-05-07
US5397774A
申请人:——
公开号:US5397774A
公开(公告)日:1995-03-14
US5635495A
申请人:——
公开号:US5635495A
公开(公告)日:1997-06-03
[EN] PYRAZOLOPYRIMIDINE AND PYRIMIDINYL BISPHOSPHONIC ESTERS AS ANTI-INFLAMMATORIES
申请人:THE UPJOHN COMPANY
公开号:WO1993001198A1
公开(公告)日:1993-01-21
(EN) Compounds useful in the treatment of inflammation structurally represented as formulae (1) and (2), wherein X is O or S and the R groups are as herein defined. The compounds are useful as anti-inflammatory and anti-arthritic agents without inhibiting prostaglandin synthesis.(FR) Composés à usage anti-inflammatoire, représentés par les formules (1) et (2) dans lesquelles X et O ou S et les groupes R sont tels que définis ici. Les composés sont utiles comme anti-inflammatoires et comme anti-arthritiques et n'affectent pas la synthèse de la prostaglandine.