Extraction, purification and anti-TMV effects of α (β)-2,7,11-cembratriene-4,6-diol from tobacco leaves

Active Constituents with Tyrosinase Inhibitory Activities from Waste Tobacco Leaves

“…The 13 C-NMR data and stereoscopic configuration of compound 2 were missing in the previous literature, so its thorough spectroscopic data and structure were detected and analyzed. Structures of compounds (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) were confirmed by comparison the NMR data with those reported.…”

“…In summary, one new compound (1), one compound with incomplete spectra (2) and twelve known compounds (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) were obtained from the wasted tobacco leaves (N. tabacum). The chemical structures of compounds 1-2 were elucidated by thorough spectroscopic analyses.…”

“…A new compound (1) and thirteen known compounds (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) were isolated from the waste leaves of tobacco by repeated column chromatography. The structure of compound 1 was elucidated using advanced spectroscopic techniques, including 1D NMR, 2D NMR, IR, HR-ESI-MS, and ECD.…”

“…Tobacco leaves are enriched in alkaloids, [4] flavonoids, [5] terpenes, [6] phenols, [7] etc., which have been reported to have pharmacological effects such as anti‐tumor, [8] anti‐oxidation, [9] analgesic, anti‐inflammatory, [10] antibacterial [11] and insecticidal effects. Most of the research on secondary metabolites in waste tobacco leaves have focused on the extraction of nicotine, solanesol, and chlorogenic acid, which are three intermediates commonly applied in the pharmaceutical industry [12–13] .…”