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Showing papers on "Acacetin published in 1991"


Journal ArticleDOI
TL;DR: Compound 12, a methyl ester of scopadulcic acid B, showed the most potent activity, among the 30 compounds tested, and was elucidated to be 6 beta-benzoyl-12-methyl-13-oxo-9(12)a,9( 12)b-dihomo-18-podocarpanol on the basis of spectral data.
Abstract: A new tetracyclic diterpenoid, scopadulciol [3], together with 6-methoxybenzoxazolinone, glutinol, and acacetin, was isolated from the 70% EtOH extract of Scoparia dulcis collected in Taiwan. Its structure was elucidated to be 6 beta-benzoyl-12-methyl-13-oxo-9(12)a,9(12)b-dihomo-18-podocarpanol on the basis of spectral data. It mildly inhibited hog gastric H+, K(+)-ATPase. Examination of the inhibitory activities of derivatives of scopadulcic acid B [2], including 3, revealed that methylation of the carboxyl group and introduction of an acetyl group or oxime at C-13 or C-18 markedly enhanced the inhibitory activity, while debenzoylation reduced the activity. Among the 30 compounds tested, compound 12, a methyl ester of scopadulcic acid B [2], showed the most potent activity.

79 citations


Journal Article
TL;DR: Eleven compounds were isolated from roots of Agastache rugosa and eight of them were identified as maslinic acid, o Leanolic acid, 3-O-acetyl oleanolic aldehyde, acacetin, tilianin, agastachoside, daucosterol, ducosterol and beta-sitosterol.
Abstract: Eleven compounds were isolated from roots of Agastache rugosa and eight of them were identified as maslinic acid (I), oleanolic acid (II), 3-O-acetyl oleanolic aldehyde (III), acacetin (IV), tilianin (V), agastachoside (VI), daucosterol (VII) and beta-sitosterol (VIII). Compound IX is a new diterpenoid and its structure was proposed to be 19(4----3)abeo-11,14-dihydroxy-12-methoxy-abieta-8,11,13,15- tetraen-7-one based on spectral data, named dehydroagastol. The studies on X and XI are in progress.

16 citations


01 Jan 1991
TL;DR: To the authors' knowledge, this is the first report of the existence of hispidulin, pectolinangenin and scutellrein in ferns.
Abstract: In a survey of 15 representatives of the Asplenioid ferns for the pinnae flavonoids, kaempferol was found in 80 %, quercetin 53% and proanthocyanidin 13% of the species studied. Kaempferol3 O-methyl ether was found in A. marinum only. Acacetin and genkwanin have been previously found in the fern, Notholaena bryopoda (Polypodiaceae), but for the first time in A. normale. This is the second report of the occurrence of this type off lavoneinferns. Hispidulin and pectolinangenin were detected inA. glaucophyllum in trace amounts due to the small sample and at a relatively low concentration. Scutellarein was detected inA. belangeri. To our knowledge, this is the first report of the existence of hispidulin, pectolinangenin and scutellrein in ferns.

3 citations