Synthesis and biological evaluations of pyrazolo[3,4-d]pyrimidines as cyclin-dependent kinase 2 inhibitors
作者:Dong Chan Kim、Yeo Ran Lee、Beom-Seok Yang、Kye Jung Shin、Dong Jin Kim、Bong Young Chung、Kyung Ho Yoo
DOI:10.1016/s0223-5234(03)00065-5
日期:2003.5
A series of 1,4,6-trisubstituted pyrazolo[3,4-d]pyrimidines 15-19, 30-38 capable of selectively inhibiting CDK2 activity were synthesized by derivatization at C-4, C-6 and N-1 with various amines and lower alkyl groups. For above synthetic compounds, biological evaluation was carried out and structure-activity relationship was examined. In our series, 4-anilino compounds exhibited better CDK2 inhibitory
通过在C-4,C-6和N-1处进行衍生化反应,合成了一系列能够选择性抑制CDK2活性的1,4,6-三取代的吡唑并[3,4-d]嘧啶15-19、30-38。胺和低级烷基。对于上述合成化合物,进行了生物学评估并检查了结构-活性关系。在我们的系列中,与4-苄基化合物相比,4-苯胺基化合物具有更好的CDK2抑制活性和抗肿瘤活性。在C-4处具有3-氟苯胺基团的化合物33a,b显示出与作为参考化合物的olomoucine和roscovitine相当或更好的CDK2抑制活性。通常,对于CDK2抑制活性,在N-1处的未取代的化合物(30a,b,33a,b,36a,b)具有比取代的化合物(32a,b,34a,b)更高的效力。至于EGFR的抑制活性 大多数化合物没有明显的活性。化合物32a,b对人癌细胞显示出有效的细胞生长抑制活性,但是它们的CDK2抑制活性比olomoucine稍差。