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Preparation of Human Tissues Embedded in Optimal Cutting Temperature Compound for Mass Spectrometry Analysis

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New ceramides from the sponge Cinachyra cavernosa.

Vijai Lakshmi¹, Ram Raghubir, Poonam Gupta

¹Medicinal and Process Chemistry Division, Central Drug Research Institute, Chhattar Manzil, Lucknow, India. vijlakshmius@yahoo.com

Journal of Asian Natural Products Research

|August 13, 2008

Summary

Two novel ceramides and tetillapyrone were identified in the Indian sponge Cinachyra cavernosa. Their chemical structures were elucidated using spectroscopic and chemical methods.

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Area of Science:

Marine Natural Products Chemistry
Chemical Biology
Marine Pharmacology

Background:

Marine sponges are a rich source of bioactive compounds.
Cinachyra cavernosa is an Indian sponge species with potential for novel metabolite discovery.

Purpose of the Study:

To isolate and characterize new chemical entities from Cinachyra cavernosa.
To elucidate the structures of novel ceramides and a pyrone derivative.

Main Methods:

Extraction and isolation of compounds from sponge tissues.
Spectroscopic analyses including NMR and Mass Spectrometry.
Chemical derivatization and degradation for structural confirmation.

Main Results:

Two new ceramides, designated 1 and 2, were isolated.
A new tetillapyrone, compound 3, was identified.
The complete structures of compounds 1, 2, and 3 were determined.

Conclusions:

The study successfully identified and characterized novel ceramides and a tetillapyrone from Cinachyra cavernosa.
These findings contribute to the understanding of secondary metabolites in marine sponges.
The isolated compounds may possess potential pharmacological activities warranting further investigation.