2Libor H,Kveta F,Vladimir K,et al.8-Azapurines as new inhibitors of cyclin-dependent kinases[J].Bioorg Med Chem,2005,13(18):5399-5407.
3Christine MR,Douglas SW,Martin JP,et al.Triazolo[1,5-a]pyrimidines as novel CDK2 inhibitors:Protein structure-guided design and SAR[J].Bioorg Med Chem,2006,16(5):1353-1357.
4Marie K,PaulG,Laurent M.Pharrnacological inhibitors of cyclin-dependent kinase[J].Trends Pharmacol Sci,2002,23(9):417-425.
5Douglas SW,Martin JP,Justin FB,et al.Structureguided design of pyrazolo[1,5-a] pyrimidines as inhibitors of human cyclin-dependent kinase 2[J].Bioorg Med Chem Lett,2005,15(4):863-867.
6Wolfbeis OS.One pot synthesis of 3-amino-1H-pyrazole-4-carbonitrile[J].Monatsh Chem,1981,112:875-877.
7Thomas N,Roland K R.Synthesis and antifungal properties of certain 7-alkylaminopyrazolo[1,5-a] pyrimidines[J].J Med Chem,1977,20(2):296 -299.
8Springer RH,Scholten MB,O' brien DE,et al.Synthesis and enzymic activity of 6-carbethoxy-and 6-ethoxy-3,7-disubstituted-pyrazolo[1,5-a] pyrimidines and related derivatives as adenosine cyclic 3',5'-phosphate phosphodiesterase inhibitors[J].J Med Chem,1982,25(3):235-242.
