4.7 Article

Cytotoxic Clerodane Diterpenes from Casearia rupestris

Journal

JOURNAL OF NATURAL PRODUCTS
Volume 74, Issue 4, Pages 776-781

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/np100840w

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Funding

  1. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
  2. Biota Instituto Virtual da Biodiversidade [03/02176-7]

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Four new clerodane diterpenes, casearupestrins A-D (1-4), were isolated from the leaves of Casearia rupestris. Compounds 1 and 4 were acetylated to yield 2,7-di-O-acetylcasearupestrin A (5) and 2,6-di-O-acetylcasearupestrin D (6), All compounds were evaluated for cytotoxicity against a small panel of human cancer cell lines. Caseartipestrin A (1) exhibited the most potent activity against MDA/MB-435 (human Melanoma) and SF-295 (human glioblastoma) cells, superior to that of the standard drug:doxorubicin.

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