| Literature DB >> 15541738 |
Masashi Yamada1, Nobuyasu Matsuura, Hiroto Suzuki, Chihiro Kurosaka, Naoko Hasegawa, Makoto Ubukata, Toshiyuki Tanaka, Munekazu Iinuma.
Abstract
Four germacranolides, named calealactones A-C and calealactone B [corrected] were isolated from the leaves of Calea urticifolia (Compositae) in addition to three known germacranolides. Their structures were established on the basis of spectroscopic analysis including by 2D NMR spectroscopy. Calealactone C and 2,3-epoxyjuanisulamin displayed potent toxicity to U937 cells.Entities:
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Year: 2004 PMID: 15541738 DOI: 10.1016/j.phytochem.2004.08.040
Source DB: PubMed Journal: Phytochemistry ISSN: 0031-9422 Impact factor: 4.072