Cao Sheng-Li, Feng Yu-Ping, Zheng Xiao-Lin, Jiang Yu-Yang, Zhang Mei, Wang Yue, Xu Meng
Department of Chemistry, Capital Normal University, Beijing, China.
Arch Pharm (Weinheim). 2006 May;339(5):250-4. doi: 10.1002/ardp.200500264.
A new series of substituted benzylamino- and heterocyclylmethylamino carbodithioate derivatives of 4-(3H)-quinazolinone were synthesized via four steps starting from 2-amino-5-methylbenzoic acid and initially screened against A-549 (human non-small cell lung cancer), HCT-8 (human colon cancer), and Bel-7402 (human liver cancer) cell lines at the single concentration of 5 microg/mL using the colorimetric MTT assay. The IC50 values were determined for the compounds reaching > or = 70% inhibition in primary screening by serial dilution. Among the newly synthesized compounds, 9n exhibited potent in vitro cytotoxicity against A-549, HCT-8, and Bel-7402 cell lines with the IC50 values of 1.65, 0.93, and 1.43 microM, respectively.
以2-氨基-5-甲基苯甲酸为起始原料,通过四步反应合成了一系列新的4-(3H)-喹唑啉酮的取代苄氨基和杂环甲基氨基碳二硫代酸酯衍生物,并使用比色MTT法在5μg/mL的单一浓度下对A-549(人非小细胞肺癌)、HCT-8(人结肠癌)和Bel-7402(人肝癌)细胞系进行了初步筛选。通过系列稀释法对在初次筛选中抑制率达到≥70%的化合物测定IC50值。在新合成的化合物中,9n对A-549、HCT-8和Bel-7402细胞系表现出较强的体外细胞毒性,IC50值分别为1.65、0.93和1.43μM。