中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5-(3-chlorophenyl)-4-[(E)-{[4-(phenylmethyloxy)phenyl]methylidene}amino]-2,4-dihydro-3H-1,2,4-triazole-3-thione | 478254-60-3 | C22H17ClN4OS | 420.922 |
—— | 2-[(E)-N-[3-(3-chlorophenyl)-5-sulfanylidene-1,5-dihydro-4H-1,2,4-triazol-4-yl]carboximidoyl]-benzoic acid | —— | C16H11ClN4O2S | 358.808 |
—— | 2-((Z)-{[3-(3-chlorophenyl)-5-thioxo-1,5-dihydro-4H-1,2,4-triazol-4-yl]imino})bezoic acid | 943868-20-0 | C16H11ClN4O2S | 358.808 |
Novel deoxycholic acid 3α-triazole conjugates based on methyl 3α-chloroacetoxy-12α-hydroxy-cholanate have been synthesised. The synthesis is accelerated by microwave irradiation under solvent free conditions in the presence of K2CO3. Some of these compounds were tested for antibacterial activity against B.subtilis, P.aeruginosa and S.aureus. The preliminary results indicated that these deoxycholic acid-triazole conjugates have good inhibitory effect against B.subtilis. All of the compounds were characterised by 1H NMR, IR, ESI-MS spectra and elemental analyses.
Compelling evidence ties heparanase, an endoglycosidase that cleaves heparan sulfate side (HS) chains of proteoglycans, with all steps of tumor development, including tumor initiation, angiogenesis, growth, metastasis, and chemoresistance. Moreover, heparanase levels correlate with shorter postoperative survival of cancer patients, encouraging the development of heparanase inhibitors as anti-cancer drugs. Heparanase-inhibiting heparin/heparan sulfate-mimicking compounds and neutralizing antibodies are highly effective in animal models of cancer progression, yet none of the compounds reached the stage of approval for clinical use. The present study focused on newly synthesized triazolo–thiadiazoles, of which compound 4-iodo-2-(3-(p-tolyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)phenol (4-MMI) was identified as a potent inhibitor of heparanase enzymatic activity, cell invasion, experimental metastasis, and tumor growth in mouse models. To the best of our knowledge, this is the first report showing a marked decrease in primary tumor growth in mice treated with small molecules that inhibit heparanase enzymatic activity. This result encourages the optimization of 4-MMI for preclinical and clinical studies primarily in cancer but also other indications (i.e., colitis, pancreatitis, diabetic nephropathy, tissue fibrosis) involving heparanase, including viral infection and COVID-19.