Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8507998 | Acta Pharmaceutica Sinica B | 2017 | 9 Pages |
Abstract
Three pairs of glycosidic 8,4â²-oxyneolignane diastereoisomers, named isatioxyneolignosides A-F (1-6), were isolated from an aqueous extract of Isatis indigotica roots. Their structures and absolute configurations were elucidated by comprehensive spectroscopic data analysis and enzyme hydrolysis. The validity of ÎδC8-C7 values to distinguish threo and erythro aryl glycerol units and Cotton effects at 235±5 nm to determine absolute configurations at C-8 in 1-6 and their aglycones (1a-6a) are discussed.319
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Authors
Lingjie Meng, Qinglan Guo, Yufeng Liu, Jiangong Shi,