Institute of Biochemistry and Biophysics PAS, Pawinskiego 5a, 02-106 Warsaw, Poland.
Bioorg Med Chem. 2010 Jul 15;18(14):5129-36. doi: 10.1016/j.bmc.2010.05.066. Epub 2010 Jun 2.
We synthesized new tropolone derivatives substituted with cyclic amines: piperidine, piperazine or pyrrolidine. The most active anti-helicase compound (IC50=3.4 microM), 3,5,7-tri[(4'-methylpiperazin-1'-yl)methyl]tropolone (2), inhibited RNA replication by 50% at 46.9 microM (EC50) and exhibited the lowest cytotoxicity (CC50)>1 mM resulting in a selectivity index (SI=CC50/EC50)>21. The most efficient replication inhibitor, 3,5,7-tri[(4'-methylpiperidin-1'-yl)methyl]tropolone (6), inhibited RNA replication with an EC50 of 32.0 microM and a SI value of 17.4, whereas 3,5,7-tri[(3'-methylpiperidin-1'-yl)methyl]tropolone (7) exhibited a slightly lower activity with an EC50 of 35.6 microM and a SI of 9.8.
哌啶、哌嗪或吡咯烷。最具活性的抗解旋酶化合物(IC50=3.4μM),3,5,7-三[(4'-甲基哌嗪-1'-基)甲基]三醇(2),在 46.9μM(EC50)时抑制 RNA 复制 50%,表现出最低的细胞毒性(CC50)>1mM,导致选择性指数(SI=CC50/EC50)>21。最有效的复制抑制剂,3,5,7-三[(4'-甲基哌啶-1'-基)甲基]三醇(6),抑制 RNA 复制的 EC50 为 32.0μM,SI 值为 17.4,而 3,5,7-三[(3'-甲基哌啶-1'-基)甲基]三醇(7)的活性略低,EC50 为 35.6μM,SI 为 9.8。