Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2007-7-27
pubmed:abstractText
Chemical investigation of a methanol extract of the flowers of Datura metel has led to the isolation of 10 new withanolides, withametelins I-P (1-8), 1,10-seco-withametelin B (9), and 12beta-hydroxy-1,10-seco-withametelin B (10), together with seven known withanolides. The structures of 1-10 were elucidated by means of spectroscopic methods, and the absolute stereochemistry of 1 was confirmed by single-crystal X-ray analysis. Compounds 1, 3, 4, and 6 exhibited cytotoxic activities against A549 (lung), BGC-823 (gastric), and K562 (leukemia) cancer cell lines, with IC50 values ranging from 0.05 to 3.5 microM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0163-3864
pubmed:author
pubmed:issnType
Print
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1127-32
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Cytotoxic withanolides from the flowers of Datura metel.
pubmed:affiliation
State Key Laboratory of Virology, College of Pharmacy, Wuhan University, Wuhan 430072, People's Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't