Synthesis of purine and pyrimidine nucleosides with furanyl scaffolds is described. The 2-functionalized tetrahydrofuranol derivatives 12 and 15 were coupled with nucleobases through the Mitsunobu reaction. The methodology developed is general and can also be applied for an efficient synthesis of apionucleosides. In addition, the methodology was used for the synthesis of the unsaturated purine nucleoside 22. However, when the elimination reaction used to produce 22 was applied to the pyrimidine case, the stable anhydro compound 24 was produced. The structures of 18 and 22 were confirmed by single-crystal X-ray data. Antiviral evaluation was performed. 2002 Elsevier Science Ltd. All rights reserved.
Pyridopyrimidines used as Plk1 (polo-like kinase) inhibitors
申请人:4SC AG
公开号:EP2100894A1
公开(公告)日:2009-09-16
The invention relates to pyridopyrimidinone compounds according to formula (I),
wherein the substituents and symbols are as defined in the description. The compounds are inhibitors of Plk1.
[GRAPHICS]The treatment of cis-epoxides with an excess of dimethylsulfonium methylide affords one-carbon homologated allylic alcohols in good to excellent yields.