Neisosposinine: A new oxindole alkaloid from neisosperma oppositifolia [Apocynaceae]

A. A.Leslie Gunatilaka, H. Chandasiri Fernando, Atta-ur-Rahman, M. Munawer Qureshi, Sinnathamby Balasubramaniam

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


A new oxindole alkaloid named neisosposinine was isolated from the stem bark of Neisosperma oppositifolia and its structure was elucidated as (1) with the aid of spectroscopic data. The C-18 methyl epimer of (1), isocarapanaubine (2) was also isolated along with three indole alkaloids, reserpiline (3), isoreserpiline (4) and ochroposinine (5).

Original languageEnglish (US)
Pages (from-to)999-1005
Number of pages7
Issue number2
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry


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