Novel Terpenoids from Calocedrus macrolepis var. formosana

Autor: Ching-Chuan Kuo, Ryh-Nan Pan, Tzong-Huei Lee, Jang Yang Chang, Mei-Hwei Tseng, Yueh-Hsiung Kuo, Chin-Lin Hsieh
Rok vydání: 2011
Předmět:
Zdroj: Chemistry & Biodiversity. 8:1901-1907
ISSN: 1612-1872
DOI: 10.1002/cbdv.201000237
Popis: Calocetriol (1), diacetylcalocediol (2), and ferrugimenthenol (3) were isolated from the bark of Calocedrus macrolepis var. formosana. Among them, 1 and 2 are secoabietane-type diterpenoids, and 3, with a novel C(20)-C(10) skeleton, is classified as a meroterpenoid. The structures of 1-3 were elucidated by spectroscopic analyses, and their biological activities were also evaluated. Compound 3 exhibited significant cytotoxic activity against human oral epidermoid carcinoma KB cells with an IC(50) value of 9.0±0.1 μM.
Databáze: OpenAIRE