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Updated: Sep 20, 2026

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis characterization and anticancer activity studies on some Mannich bases derived from 1,2,4-triazoles
B Shivarama Holla1, B Veerendra, M K Shivananda
1Department of P.G. Studies and Research in Chemistry, Mangalore University, Mangalagangotri, 574199, India. bhadrasettyv@yahoo.com
Abstract:
A series of 3-substituted 4-[5-(4-methoxy-2-nitrophenyl)-2-furfurylidene] amino-5-mercapto-1,2,4-triazoles (3) were synthesized. Aminomethylation of compounds 3 with formaldehyde and various secondary amines furnished Mannich bases 4 and 5. These compounds were characterized on the basis of IR, 1H-NMR, mass spectral data and elemental analysis. The newly synthesized compounds were screened for their anticancer activity against a panel of 60 cell lines derived from seven cancer types namely, lung, colon, melanoma, renal, ovarian, CNS and leukemia. Some of the compounds were slightly more potent.
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