1,654 research outputs found

    Monotonicity-Preserving Interpolation with a Kind of Plane Parameter Curve

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    Pan YJ, Wang GJ. Monotonicity-Preserving interpolation with a kind of plane parameter curve. Journal o

    New diterpenoid alkaloids from Delphinium souliei Franch

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    Continuing investigation of Delphinium souliei Franch yielded two minor new diterpenoid alkaloids--souline E(1) and souline F(2), their structures were determined on the basis of spectroscopic evidences

    Determination of the structures of four new isomeric cyclitols

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    A series of impurities, which were all of the same molecular formula, C17H33NO7, were obtained in the process of voglibose synthesis. After isolation and purification, four isomeric cyclitols were completely assigned by 2D NMR experiments. One of the compounds was established by single-crystal X-ray diffraction analysis as 5,6-dideoxy-5-{[2-hydroxy-1-(hydroxymethyl)ethyl]amino}-1-C-(methoxycycl ohexylmethyl)-D-epi-inositol. (C) 2004 Elsevier Ltd. All rights reserved
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