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neo-Clerodane diterpenoids from Scutellaria barbata
Friday, November 19, 2010 -
Scutebarbatines W―Z, new neo-clerodane diterpenoids from Scutellaria barbata and structure revision of a series of 13-spiro neo-clerodanes
Fei Wang,* Fu-Cai Ren, Ya-Ju Li, Ji-Kai Liu*
Chem. Pharm. Bull., 2010, 58(9): 1267-1270
Four new neo-clerodane diterpenoids, scutebarbatines W―Z (1―4), were isolated from the ethanol extract of Scutellaria barbata (Labiatae), and their structures were elucidated on the basis of extensive spectroscopic studies. In addition, the proposed structures of at least seven 13-spiro subtype neo-clerodanes: scutehenanine B (5), scutebarbatine G (6), 6-O-nicotinoylscutebarbatine G (7), barbatin A (8), 6,7-di-O-nicotinoylscutebarbatine G (9), 6-O-nicotinoyl-7-O-acetylscutebarbatine G (10), and scutebarbatine F (11), reported by Dai and co-workers from the same species, were incorrectly assigned and have been revised by reanalysis of the published NMR data.
Notes
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Wednesday, April 26, 2023 -
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Saturday, March 18, 2023 -
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JCR 2013 --- Natural Product Chemistry
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Thursday, June 20, 2013 -
JCR 2011 --- Natural Product Chemistry
Thursday, July 26, 2012 -
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Tuesday, April 17, 2012 -
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Thursday, February 16, 2012 -
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