Ramesh, Deepthi published the artcileFirst-in-class pyrido[2,3-d]pyrimidine-2,4(1H,3H)-diones against leishmaniasis and tuberculosis: Rationale, in vitro, ex vivo studies and mechanistic insights, Quality Control of 1468-83-3, the main research area is Pyrido pyrimidine dione leishmaniasis tuberculosis; antileishmanial antitubercular activity mol modeling; dihydrofolate reductase-thymidylate synthase complex; leishmaniasis; pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione; thymidylate kinase; tuberculosis.
Pyrido[2,3-d]pyrimidine-2,4(1H,3H)-diones were synthesized, for the first time, from indole chalcones and 6-aminouracil, and their ability to inhibit leishmaniasis and tuberculosis (Tb) infections was evaluated. The in vitro antileishmanial activity against promastigotes of Leishmania donovani revealed exceptional activities of compounds 3, 12 and 13, with IC50 values ranging from 10.23 ± 1.50 to 15.58 ± 1.67 μg/mL, which is better than the IC50 value of the standard drug pentostam of 500 μg/mL. The selectivity of the compounds towards Leishmania parasites was evaluated via ex vivo studies in Swiss albino mice. The efficiency of these compounds against Tb infection was then evaluated using the in vitro anti-Tb microplate Alamar Blue assay. Five compounds, 3, 7, 8, 9 and 12, showed MIC100 values against the Mycobacterium tuberculosis H37Rv strain at 25 μg/mL, and compound 20 yielded an MIC100 value of 50 μg/mL. Mol. modeling of these compounds highlighted interactions with binding sites of dihydrofolate reductase, pteridine reductase and thymidylate kinase, thus establishing the rationale of their pharmacol. activity against both pathogens, which is consistent with the in vitro results. From the above results, it is clear that compounds 3 and 12 are promising lead candidates for Leishmania and Mycobacterium infections and may be promising for coinfections.
Archiv der Pharmazie (Weinheim, Germany) published new progress about Cell viability. 1468-83-3 belongs to class benzothiophene, name is 3-Acetylthiophene, and the molecular formula is C6H6OS, Quality Control of 1468-83-3.
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem