Synthesis and Importance of Bulky Aromatic Cap of Novel SAHA Analogs for HDAC Inhibition and Anticancer Activity
作者:Pu-Soon Chun、Won-Hee Kim、Jung-Su Kim、Jin-Ah Kang、Hye-Jin Lee、Ji-Young Park、Mee-Young Ahn、Hyung-Sik Kim、Hyung-Ryong Moon
DOI:10.5012/bkcs.2011.32.6.1891
日期:2011.6.20
On the basis of potent HDAC-inhibitory activity and anticancer activity of SAHA, novel SAHA derivatives 3a-d and 7 with a bulky cap such as p-dimethylaminophenyl, 4-phenylaminophenyl, 4-phenyloxyphenyl, 9H-fluorenyl or naphthalenyl ring were synthesized starting from the corresponding aryl amines or naphthalenyl acetic acid using an EDC-mediated amide coupling reaction in the presence of HOBt followed by a nucleophilic addition-elimination reaction with hydroxylamine. Compounds 3b, 3c and 3d showed more potent inhibitory activity on total HDACs (14~27-fold), HDAC1 (8~15-fold), HDAC2 (1.3~25-fold) and HDAC7 (1~3-fold) and more potent anticancer activity (2~22-fold) against MCF-7, MDA-MB-231, MCF-7/Dox, MCF-7/Tam, SK-OV-3, LNCaP and PC3 human cancer cell lines than SAHA.
基于SAHA的强效HDAC抑制活性和抗癌活性,通过EDC介导的酰胺偶联反应以及随后与羟胺的亲核加成-消除反应,从相应的芳基胺或萘乙酸出发,合成了具有大体积帽结构的新型SAHA衍生物3a-d和7,例如邻二甲氨基苯基、邻苯胺基苯基、邻苯氧基苯基、9H-芴基或萘基环。化合物3b、3c和3d显示出比SAHA更强的总HDACs(14~27倍)、HDAC1(8~15倍)、HDAC2(1.3~25倍)和HDAC7(1~3倍)抑制活性,以及对MCF-7、MDA-MB-231、MCF-7/Dox、MCF-7/Tam、SK-OV-3、LNCaP和PC3人癌细胞系更强的抗癌活性(2~22倍)。