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J Asian Nat Prod Res. 2013;15(5):574-8. doi: 10.1080/10286020.2013.782621. Epub 2013 Apr 24.

A new ent-kaurane diterpenoid glycoside from Isodon japonica var. glaucocalyx.

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1
College of Bio-Information, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China.

Abstract

A new ent-kaurane diterpenoid glycoside (1), named glaucocalyxin G, has been isolated from the n-butanol-soluble fraction of the dried whole plants of Isodon japonica var. glaucocalyx along with two known compounds, namely arjunglucoside (2) and kaempferol-3-O-rutinoside (3). The structures of the isolated compounds were assigned on the basis of their (1)H and (13)C NMR spectra including two-dimensional NMR techniques such as HMQC, HMBC, and NOESY experiments and comparison with the literature data.

PMID:
23614395
DOI:
10.1080/10286020.2013.782621
[Indexed for MEDLINE]
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