Molecules (Apr 2018)

Two Novel Cycloartane-Type Triterpenes from Trichilia casaretti C. DC. (Meliaceae)

  • Ivo Jose Curcino Vieira,
  • Elaine Rodrigues Figueiredo,
  • Milena Gonçalves Curcino Vieira,
  • Almir Ribeiro de Carvalho Junior,
  • Michel de Souza Passos,
  • Samyra Imad da Silva Boeno,
  • Otoniel Aquino Azevedo,
  • Raimundo Braz-Filho

DOI
https://doi.org/10.3390/molecules23040949
Journal volume & issue
Vol. 23, no. 4
p. 949

Abstract

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Two new triterpenes cycloartane-type, named 24-methylencycloartan-12-oxo-3β,22α-diol and trichiliol, were isolated from the leaves of Trichilia casaretti C. DC. together with three known triterpenes—24-methylencycloart-3β,22-diol, 22,25-dihydrocycloart-23(E)-en-3β-ol, and 22(R)-hydroxycycloart-24-en-3-ol. These compounds were characterized on the basis of their spectral data, mainly 1D (1H and 13C) and 2D NMR (1H-1H-COSY, 1H-1H-NOESY, HMQC, HSQC, and HMBC), and mass spectra (EI-MS and HR-ESI-MS), also involving comparison with data from the literature.

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