Secondary Metabolites from the Roots of Cinnamomum kanehirae

Anti-Covid-19 Activity Compounds from Michelia crassipes

“…In the course of screening for biologically and chemically novel agents from Formosan Magnoliaceous plants [ 3 – 7 ], M. crassipes was chosen for further phytochemical investigation. The compounds derived from the stems include one oxoaporphine, liriodenine ( 1 ) [ 8 ]; four benzenoids, vanillic acid ( 2 ) [ 9 ], vanillin ( 3 ) [ 10 ], p -hydroxybenzoic acid ( 4 ) [ 10 ], and p -hydroxybenzaldehyde ( 5 ) [ 11 ]; two amides, N - trans -feruloyltyramine ( 6 ) [ 12 ] and N - cis -feruloyltyramine ( 7 ) [ 13 ]; one cyclitol, (–)-liriodendritol ( 8 ) [ 14 ].…”

“…Vanillin (3) as in [ 10 ]. p -Hydroxybenzoic acid (4) as in [ 11 ]. 1 H NMR (400 MHz, CDCl 3 , δ, ppm, J/Hz): 6.85 (2H, d, J = 8.6, H-3, 5), 7.96 (2H, d, J = 8.6, H-2, 6).…”