| Title:  Nupharidine CAS Registry Number:  468-89-3 CAS Name:  [1R-(1a,4b,5a,7b,9aa)]-4-(3-Furanyl)octahydro-1,7-dimethyl-2H-quinolizine 5-oxide Molecular Formula:  C15H23NO2 Molecular Weight:  249.35 Percent Composition:  C 72.25%, H 9.30%, N 5.62%, O 12.83% Literature References:  From rhizome of Nuphar luteum (L.) Sibth. & Sm. (Nymphaea lutea L.), Nymphaeaceae:  Goris, Crété, Bull. Sci. Pharmacol. 17, 13 (1910).  Isoln from N. japonicum DC., Nymphaeaceae and structure:  Kotake et al., Ann. 606, 148 (1957).  Total synthesis:  Kotake et al., Bull. Chem. Soc. Jpn. 35, 698 (1962).  Abs configuration:  Kawasaki et al., ibid. 41, 1264 (1968); La Londe et al., J. Am. Chem. Soc. 93, 2501 (1971).  Determn of crystal structure, abs config and stereochemistry by x-ray diffraction methods:  J. Ohrt et al., J. Cryst. Mol. Struct. 3, 3 (1973). Properties:  Crystals, mp 221°.  [a]D +15°.  Soluble in alcohol, chloroform, ether, acetone, amyl alcohol, dil acids.  The base is tasteless, the salts bitter. Melting point:  mp 221° Optical Rotation:  [a]D +15°  |