3 rezultatet
BACKGROUND
The medicinal plants Vincetoxicum arnottianum (VSM), Berberis orthobotrys (BORM), Onosma hispida (OHRM and OHAM) and Caccinia macranthera (CMM) are used traditionally in Pakistan and around the world for the treatment of various diseases including cancer, dermal infections, uterine tumor,
Two known phenanthroindolizidine alkaloids, (-)-(R)-13aalpha-antofine (1) and (-)-(R)-13aalpha-6-O-desmethylantofine (2), and two new natural products, (-)-(R)-13aalpha-secoantofine (3) and (-)-(R)-13aalpha-6-O-desmethylsecoantofine (4), were isolated from Cynanchum vincetoxicum. The structures of
Two previously known phenanthroindolizidine alkaloids, (-)-10beta-antofine N-oxide (1) and (-)-10beta, 13aalpha-14beta-hydroxyantofine N-oxide (2), and a novel alkaloid, (-)-10beta,13aalpha-secoantofine N-oxide (3), were isolated from aerial parts of Cynanchum vincetoxicum. Their structures were