Synthesis and evaluation of new 1,2,3,4-tetrahydroisoquinoline analogs as antiglioma agents
作者:Renukadevi Patil、Shivaputra Patil、XiangDi Wang、Fei Ma、William E. Orr、Wei Li、Charles R. Yates、Eldon E. Geisert、Duane D. Miller
DOI:10.1007/s00044-010-9356-8
日期:2011.1
Novel tetrahydroisoquinoline (THI) analogs were designed, synthesized, and their antiglioma activity was evaluated. The results showed that 6,8-dimethoxy-1-(2'-methoxybiphenyl-4-ylmethyl)-1,2,3,4-tetrahydroisoquinoline hydrochloride (25) demonstrated improved potency, and selectivity on C6 rat glioma vs cultured rat astrocytes (EC50 0.63 mu M vs. 10.85 mu M) compared to our recent lead molecule EDL-155 (EC50 1.5 mu M vs. 27.4 mu M). The isomers of 25 were isolated using a semi-preparative high-performance liquid chromatography (HPLC) method, and their in vitro biological evaluation revealed that (+) 25 was the most active, and it was nearly 21 fold more potent than (-) 25, suggesting the antiglioma profile is influenced by stereochemical factors.