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1. (Article ID: 11338)
Damu AG, Jayaprakasam B, Gunasekar D
A new flavone 2'-glucoside from Andrographis alata
Journal of Asian Natural Products Research 1(2) (1998)
133-138
A new flavone glucoside, 5,2',6'-trihydroxy-7-methoxyflavone 2'-O-beta-D-glucopyranoside has been isolated from the whole plant of Andrographis alata. The structure was elucidated on the basis of spectral and chemical evidence.
5, Acanthaceae, 2', Andrographis alata, flavone glucoside, 6'-trihydroxy-7-methoxyflavone 2'-O-beta-D-glucopyranoside
NCBI PubMed ID: 11261214Publication DOI: 10.1080/10286029808039855Journal NLM ID: 100888334Publisher: Harwood Academic Publishers; London: Informa Healthcare
Correspondence: Gunasekar D
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Institutions: Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
Methods: 13C NMR, 1H NMR, FAB-MS, acid hydrolysis, UV, extraction, optical rotation measurement, acetylation, CC, melting point determination, HMBC
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2. (Article ID: 11422)
Damu AG, Jayaprakasam B, Rao KV, Gunasekar D
A flavone glycoside from Andrographis alata
Phytochemistry 49(6) (1998)
1811-1813
A new anthraquinone glycoside was isolated from the hydrophilic fraction of the Chinese medicinal plant Rhynchotechum vestitum. Its structure was determined as damnacanthol-11-O-beta-glucoside by spectroscopic evidence. The occurrence of rubiadin-1-methylether-3-O-beta-primeveroside, lucidine-3-O-beta-primeveroside and rubiadin-3-O-beta-primeveroside in the plant is reported for the first time.
flavone glycoside, Acanthaceae, Andrographis alata, whole plant, echioidinin 5-O-beta-D-glucopyranoside
NCBI PubMed ID: 11711108Publication DOI: 10.1016/s0031-9422(98)00342-2Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati, India
Methods: 13C NMR, 1H NMR, IR, FAB-MS, acid hydrolysis, UV, CC, melting point determination, extractin
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