常温常压下稳定,与强氧化剂反应。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5,6,11,12-Tetrahydro-dibenzazocin | 5697-88-1 | C15H15N | 209.291 |
—— | 2-<(11,12-dihydro-6-(5H)oxodibenzazocin-5-yl)methyl>benzoic acid | 76011-97-7 | C23H19NO3 | 357.409 |
—— | (6-Oxo-11,12-dihydro-6H-dibenzo[b,f]azocin-5-yl)-acetic acid | 119656-57-4 | C17H15NO3 | 281.311 |
—— | 2-[4-[(6-Oxo-11,12-dihydrobenzo[c][1]benzazocin-5-yl)methyl]phenyl]benzenesulfonamide | 252014-43-0 | C28H24N2O3S | 468.576 |
Histone deacetylase (HDAC) inhibitors are a class of drugs used in the cancer treatment. Here, we developed a library of 19 analogues of Vorinostat, an HDAC inhibitor used in lymphomas treatment. In Vorinostat, we replaced the hydrophobic phenyl group with various tricyclic ‘caps’ possessing a central, eight-membered, heterocyclic ring, and investigated the HDAC activity and cytotoxic effect on the cancer and normal cell lines. We found that 3 out of the 19 compounds, based on dibenzo[b,f]azocin-6(5H)-one, 11,12-dihydrodibenzo[b,f]azocin-6(5H)-one, and benzo[b]naphtho[2,3-f][1,5]diazocine-6,14(5H,13H)-dione scaffolds, showed better HDACs inhibition than the referenced Vorinostat. In leukemic cell line MV4-11 and in the lymphoma cell line Daudi, three compounds showed lower IC50 values than Vorinostat. These compounds had higher activity and selectivity against MV4-11 and Daudi cell lines than reference Vorinostat. We also observed a strong correlation between HDACs inhibition and the cytotoxic effect. Cell lines derived from solid tumours: A549 (lung carcinoma) and MCF-7 (breast adenocarcinoma) as well as reference BALB/3T3 (normal murine fibroblasts) were less susceptible to compounds tested. Developed derivatives show improved properties than Vorinostat, thus they could be considered as possible agents for leukemia and lymphoma treatment.