Cis-Clerodane-type diterpenoids from Tinospora crispa and their anticancer potential.

ABSTRACT: Tinospora crispa (Menispermaceae) has been traditionally consumed as a functional food and herbal remedy in Southeast Asia, notably in Thailand and India. cis-Clerodane-type diterpenoids represent the characteristic and predominant metabolites of the genus Tinospora. Chemical investigation of a MeOH extract of T. crispa leaves, guided by LC/MS analysis coupled with an in-house UV spectral library, led to the isolation of five compounds (1-5), including four new cis-clerodane-type diterpenoids (1-4). Their structures were elucidated by 1D and 2D NMR spectroscopy, high-resolution mass spectrometry (HR-ESIMS), interproton distance analysis using NOE peak amplitude normalization for improved cross-relaxation (PANIC), Snatzke's method, and computational ECD and DP4⁺ probability calculations. Th

SUBMITTER: Jeong SY 

PROVIDER: S-EPMC12913334 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature