NMR spectral assignments of three aspidofractinine alkaloids, kopsine, fruticosine and fruticosamine.
1D and 2D NMR techniques were used to assign fully the spectra of three aspidofractinine alkaloids, kopsine (1), fruticosamine (2) and fruticosine (3), isolated from a cultivated specimen of the plant Kopsia fruticosa (Apocynaceae). The assignment of the NMR data for 1, 2 and 3 will help in the future assignments of related alkaloids.
Glover
Robert P
RP
MerLion Pharmaceuticals, 1 Science Park Road, The Capricorn 05-01, Singapore Science Park II, Singapore 117528.
Yoganathan
K
K
Butler
Mark S
MS
D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards*; D008968:Molecular Conformation; D012015:Reference Standards
D000470:Alkaloids; D026121:Indole Alkaloids; C502053:fruticosamine; C502052:fruticosine; C502051:kopsine