@Article{IPB-2271, author = {Porzel, A. and Phuong Lien, T. and Schmidt, J. and Drosihn, S. and Wagner, C. and Merzweiler, K. and Van Sung, T. and Adam, G.}, title = {{Fissistigmatins A–D: Novel Type Natural Products with Flavonoid–Sesquiterpene Hybrid Structure from Fissistigma bracteolatum}}, year = {2000}, pages = {865-872}, journal = {Tetrahedron}, doi = {10.1016/S0040-4020(99)01049-2}, volume = {56}, abstract = {From Fissistigma bracteolatum Chatt. (Annonaceae), a Vietnamese folk medicinal plant, the novel type natural products fissistigmatin A–D (1–4), being composed of a flavonoid and a sesquiterpene moiety, were isolated. Their structures were elucidated by extensive NMR techniques, MS, CD, molecular modelling calculations and X-ray analysis.} }