Iridoids from endemic sardinian Linaria species

Bianco, Armandodoriano; Guiso, Marcella; Martino, M. U. De; Nicoletti, Marcello; Serafini, Mauro; Tomassini, Lamberto; Mossa, Luigi; Poli, Ferruccio

doi:10.1016/0031-9422(95)00892-6

Cited by 22 publications

(5 citation statements)

References 7 publications

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“…In a program aimed toward the phytochemical investigation of endemic Sardinian species, we have examined Linaria arcusangeli Atzei et Camarda, 1 an interesting case of endemism located only in a restricted area about 40 km northeast of Cagliari. The plant is rich in iridoids, 2 including antirrhinoside and antirrhide, which are chemotaxonomic markers of the Scrophularioideae-Antirrhineae tribe of the family of Scrophulariaceae, to which the genus Linaria belongs. 3,4 An examination of the most polar glycosidic constituents resulted in the isolation of macfadienoside and a new iridoid glucoside, 1.…”

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confidence: 99%

8-epi-Muralioside, an Iridoid Glucoside from Linaria arcusangeli

Bianco¹,

Guiso²,

Martino³

et al. 1997

J. Nat. Prod.

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confidence: 99%

8-epi-Muralioside, an Iridoid Glucoside from Linaria arcusangeli

Bianco¹,

Guiso²,

Martino³

et al. 1997

J. Nat. Prod.

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“…Iridoids isolated from other Linaria species are generally characterized by the esterification of hydroxyl at C-6 of antirrhinoside and of its 5-deoxy derivative, as in the case of iridoids isolated from Linaria arcusangeli Atzei et Camarda [2], Linaria vulgaris Miller [5], Linaria japonica Miq. [10], Linaria clementei Boiss.…”

Section: Glycosidic Monoterpenes From Linaria Caprariamentioning

confidence: 99%

“…The examined species contained several specific compounds, i.e. antirrhinoside, 1, and its derivatives, whose main structural feature was the presence of acylating units at position 6 (iridoid moiety) or at position 6 0 (glucose moiety) [2][3][4][5][6].…”

Section: Glycosidic Monoterpenes From Linaria Caprariamentioning

confidence: 99%

Glycosidic Monoterpenes fromLinaria Capraria

Bianco

Guiso

Ballero

et al. 2004

Natural Product Research

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During our systematic study on the species of genus Linaria (Scrophulariaceae) present in Italy, we examined the glycosidic fraction of Linaria capraria Moris et De Not., a species endemic of Tuscany archipelago. This fraction is particularly complex and we considered in this article only the medium polarity components. In accordance with previous studies, L. capraria shows acyl derivatives of antirrhinoside 1 as specific chemotaxonomic iridoidic markers. L. capraria exhibits a complex composition, with regard to iridoidic constituents, with several chromatographic problems to be resolved. We then isolated, besides the known antirrhinoside 1, two acyl derivatives of antirrhinoside, the 6'-O-senecioyl derivative, 2, and the 6'-O-angeloyl derivative, 3. In addition a glucoside of an acyclic monoterpene, 4, was also isolated, which may be correlated to the other monoterpenic glycosides isolated from other species of Scrophulariaceae.

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“…[10,45] Protocol A: Antirrhinoside 1 (350 mg) was dissolved in water (10 mL) and then Hg(OAc) 2 (300 mg) was added to the stirred solution at room temperature. Once a clear mixture had been obtained, a tenfold excess of NaBH 4 was added.…”

Section: Synthesesmentioning

confidence: 99%