title: Synthesis and biological evaluation of new [1,2,4]triazino[5,6-b]indol-3-ylthio-1,3,5-triazines and [1,2,4]triazino[5,6-b]indol-3-ylthio-pyrimidines against Leishmania donovani.
abstract: A series of [1,2,4]triazino[5,6-b]indol-3-ylthio-1,3,5-triazines and [1,2,4]triazino[5,6-b]indol-3-ylthio-pyrimidines were synthesized and screened for their in vitro antileishmanial activity against Leishmania donovani. Among all, 8 compounds have shown more than 90% inhibition against promastigotes and IC50 in the range of 4.01-57.78 microM against amastigotes. Compound 5, a triazino[5,6-b]indol-3-ylthio-1,3,5-triazine derivative was found to be the most active and least toxic with 20- & 10-fold more selectivity (S.I.=56.61) as compared to that of standard drugs pentamidine and sodium stibogluconate (SSG), respectively.
authors.affiliation: Division of Medicinal and Process Chemistry, Central Drug Research Institute, MG Road, Lucknow 226001, U.P., India.
authors.forename: Leena
authors.initials: L
authors.lastname: Gupta
authors.forename: Naresh
authors.initials: N
authors.lastname: Sunduru
authors.forename: Aditya
authors.initials: A
authors.lastname: Verma
authors.forename: Saumya
authors.initials: S
authors.lastname: Srivastava
authors.forename: Suman
authors.initials: S
authors.lastname: Gupta
authors.forename: Neena
authors.initials: N
authors.lastname: Goyal
authors.forename: Prem M S
authors.initials: PM
authors.lastname: Chauhan
mesh_terms: D000818:Animals; D000981:Antiprotozoal Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D004353:Drug Evaluation, Preclinical; D020128:Inhibitory Concentration 50; D007893:Leishmania donovani / Q000187:drug effects* / Q000254:growth & development; D008018:Life Cycle Stages; D051379:Mice; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity; D014227:Triazines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology* / Q000633:toxicity
chemical_list: D000981:Antiprotozoal Agents; D011743:Pyrimidines; D014227:Triazines