Steroidal alkaloids and an androstane derivative from the bark of Holarrhena pubescens

  • Siddiqui B
  • Usmani S
  • Begum S
 et al. 
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Abstract

Two steroidal alkaloids and an androstane derivative have been isolated from the bark of H. pubescens and their structures elucidated through exhaustive 1D and 2D NMR studies (COSY-45, NOESY, J-resolved, HMQC). © 1993.

Author-supplied keywords

  • 1,4-dien-3,17-dioxo-11α-hydroxyandrostane.
  • 1,4-dien-3-oxo-15α-hydroxy-N-demethylconanine
  • 1,4-dien-3-oxo-conanine
  • Apocynaceae
  • Holarrhena pubescens
  • androstane
  • bark
  • steroidal alkaloids

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