Published April 2013 | Version v1
Journal article

An azafluorenone alkaloid and a megastigmane from Unonopsis lindmanii (Annonaceae)

  • 1. Universidade de Sao Paulo (USP), SP (Brazil). Instituto de Quimica
  • 2. Universidade Federal de Sao Joao Del Rei, Divinpolis, MG (Brazil). Departamento de Farmacia
  • 3. Universidade de Sao Paulo (USP), Ribeirao Preto, SP (Brazil). Faculdade de Ciencias Farmaceuticas
  • 4. Universidade de Sao Paulo (USP), SP (Brazil). Instituto de Ciencias Biomedicas
  • 5. Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, MS (Brazil). Departamento de Quimica

Description

The azafluorenone alkaloid 5,8-dimethoxy-7-hydroxy-1-methyl-4-azafluoren-9-one and the megastigman (–)-(5R*, 6S*)-megastigman-3-one-10,7-olide were isolated from aerial parts of Unonopsis lindmanii (Annonaceae), along with the known compounds (3S*,5S*,8R*)-3,5-dihydroxymegastigma-6,7-dien-9-one (grasshopper ketone), N-trans-feruloyltyramine, (–)-anonaine, (–)-asimilobine, liriodenine and (–)-syringaresinol. This is the first description of the presence of megastigmanes in Annonaceae. The structures of the compounds were elucidated based on spectroscopic data. (author)

Availability note (English)

Available from http://www.scielo.br/pdf/jbchs/v24n4/v24n4a02.pdf

Additional details

Publishing Information

Journal Title
Journal of the Brazilian Chemical Society
Journal Volume
24
Journal Issue
4
Journal Page Range
p. 529-533
ISSN
0103-5053
CODEN
JOCSET