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Ceriopsins F and G, diterpenoids from Ceriops decandra.

Ammanamanchi S R Anjaneyulu1, Vadali Lakshmana Rao

  • 1Department of Organic Chemistry, School of Chemistry, Andhra University, Visakhapatnam-530 003, India. anjaneyulu@yahoo.com

Phytochemistry
|March 22, 2003
PubMed
Summary

Researchers isolated two new diterpenoids, ceriopsins F and G, and five known compounds from Ceriops decandra roots. These findings expand our understanding of the chemical constituents of this mangrove species.

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Phytochemistry·2003

Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Marine Natural Products

Background:

  • Ceriops decandra is a mangrove species found in the Kauvery estuary.
  • Mangrove plants are known sources of diverse bioactive compounds.

Purpose of the Study:

  • To isolate and characterize chemical constituents from the roots of Ceriops decandra.
  • To identify novel diterpenoids and known compounds from this plant species.

Main Methods:

  • Extraction of Ceriops decandra roots using a methanol:dichloromethane (1:1) solvent system.
  • Fractionation of the ethyl acetate soluble portion.
  • Structure elucidation of isolated compounds using physical and spectral data analysis.

Main Results:

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  • Isolation of two new diterpenoids, ceriopsins F (1) and G (2).
  • Identification of five known compounds: steviol (3), methyl ent-16beta,17-dihydroxy-9(11)-kauren-19-oate (4), ent-16beta,17-dihydroxy-9(11)-kauren-19-oic acid (5), isosteviol (6), and 8,15R-epoxypimaran-16-ol (7).
  • The structures of ceriopsins F and G were determined as methyl ent-13,17-epoxy-16-hydroxykauran-19-oate (1) and ent-16-oxobeyeran-19-al (2), respectively.

Conclusions:

  • The chemical investigation of Ceriops decandra roots yielded new diterpenoids and known compounds.
  • This study contributes to the phytochemical knowledge of Ceriops decandra and highlights its potential for novel compound discovery.