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Browsing School of Chemical Sciences by Author "Malik, B.L."

Browsing School of Chemical Sciences by Author "Malik, B.L."

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  • Revised structure of alboctalol 
    Bates, R.B.; Caldera, S.; Deshpande, V.H.; Malik, B.L.; Paknikar, S.K. (Journal of Natural Products. 60(10); 1997; 1041-1042.)
    A revised structure was deduced for alboctalol from NMR studies. Racemic alboctalol octamethyl ether was synthesized by treatment of oxyresveratrol tetramethyl ether with acid.
  • Stereochemistry of 4,5-dihydroxy-alpha-santonin and structure of a new santonin oxidation-product 
    Paknikar, S.K.; Malik, B.L.; Bates, R.B.; Caldera, S.; Wijayaratne, T.V. (Tetrahedron Letters. 35(44); 1994; 8117-8118.)
    The diol, mp 220 degrees C, obtained by KMnO4 oxidation of alpha-santonin is shown by an nOe study to be 4 beta,5 beta- rather than 4 alpha,5 alpha-dihydroxy-alpha-santonin. On further oxidation with Pb(OAc)(4), it ...
  • An unexpected oxidation product of alpha-santonin 
    Bates, R.B.; Malik, B.L.; Paknikar, S.K.; McClure, K.J.; Carducci, M.D. (Acta Crystallographica Section C-Crystal Structure Communications. 55; 1999; 1881-1882.)
    The structure proposed previously for this unexpected oxidation product of cr-santonin was verified by X-ray diffraction to be [3S-(3a,3a alpha,5a beta,9a alpha,9b beta)]-9a-acetyl-3a,4,5,5a,9a,9b-hexahydro-3,5a-dimethyl ...

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