DBCO Middleware 1 是一种用于抗体-药物缀合物的点击化学混合物。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5,6-dihydrodibenzo[b,f]azocine | 23194-93-6 | C15H13N | 207.275 |
5,6-二氢二苯并[B,F]氮杂辛 | 5,6-dihydrodibenzo[b,f]azocine | 23194-93-6 | C15H13N | 207.275 |
—— | N-[6-(6H-dibenzo[b,f]azocin-5-yl)-6-oxo-hexyl]-2,2,2-trifluoroacetamide | 1255942-02-9 | C23H23F3N2O2 | 416.443 |
—— | N-(6-(dibenzo[b,f]azocin-5(6H)-yl)-6-oxohexyl)trifluoroacetamide | —— | C23H23F3N2O2 | 416.443 |
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.