New Antineoplastic Naphthohydroquinones Attached to Labdane and Rearranged Diterpene Skeletons
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چکیده
منابع مشابه
A new labdane diterpene from Vitex negundo.
CONTEXT Vitex negundo Linn. (Verbenaceae) seeds are pepper substitute and occasionally used as a condiment for edible purposes. The seeds also find use for analgesia, sedation, rheumatism and joint inflammation in folk medicine. OBJECTIVE To isolate and characterize bioactive constituents from V. negundo seeds. MATERIALS AND METHODS The ethanol extract of V. negundo seeds was subjected to r...
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A new labdane diterpene, 9alpha,16xi-dihydroxy-6-oxo-7,13-labdadien-15,16-olide (solicanolide, 1) and six known compounds identified as quercetin (2), 3-O-caffeoylquinic acid (3, neochlorogenic acid), 5-O-caffeoylquinic acid (4, chlorogenic acid), 4,5-di-O-caffeoylquinic acid (5), 3,5-di-O-caffeoylquinic acid (6) and 3,4-di-O-caffeoylquinic acid (7) were isolated from the flowers of Solidago ca...
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In [2], [3] and [4] a procedure for the reduction of a binary image to a skeleton for the purpose of the automated recognition and classification of images is described. In this work we extend the construction of skeletons to grey level or color images. A hierarchy of decorated graphs are constructed which capture the visual content of the original image to different levels of detail. The corre...
متن کاملTwo new labdane diterpene glycosides from flowers of Baccharis medullosa DC.
From the flowers of Baccharis medullosa DC (Asteraceae) two new ent-labdane-type diterpene glycosides were isolated. Structures were established by application of various spectroscopic techniques. The sugar residues were identified after acid hydrolysis of the isolated products.
متن کاملRetraction. A new antifungal labdane diterpene from the leaves of Saraca indica.
A new labdane diterpene, along with 10 known sterols and flavonoids, was isolated from the hydroalcoholic extract of the leaves of Saraca indica. The chemical structure of the new compound was identified as 6,9-epoxy marrubiinic acid on the basis of spectroscopic analyses including two-dimensional NMR. The antimicrobial potential of the new compound was evaluated against Gram-positive and Gram-...
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ژورنال
عنوان ژورنال: Molecules
سال: 2021
ISSN: 1420-3049
DOI: 10.3390/molecules26020474