1993
DOI: 10.1016/0031-9422(91)80045-3
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A sesquiterpene glucoside from Reichardia tingitana

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Cited by 15 publications
(7 citation statements)
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“…The negative DCIMS of 3 displayed [M − H] - at m / z 803, 268 units higher than that of 2 . Therefore, the structure of 3 was assumed to contain two p -hydroxyphenylacetyl moieties . According to the above data of 1 and 2 , the coupling constant among H-5/H-6, H-6/H-7, and H-7/H-8 was also 10.0 Hz, indicating that these protons are in trans relationships.…”
Section: Resultsmentioning
confidence: 65%
See 1 more Smart Citation
“…The negative DCIMS of 3 displayed [M − H] - at m / z 803, 268 units higher than that of 2 . Therefore, the structure of 3 was assumed to contain two p -hydroxyphenylacetyl moieties . According to the above data of 1 and 2 , the coupling constant among H-5/H-6, H-6/H-7, and H-7/H-8 was also 10.0 Hz, indicating that these protons are in trans relationships.…”
Section: Resultsmentioning
confidence: 65%
“…In addition, the presence of another 11′ ,13′-dihydrolactucin 4 Therefore, the structure of 3 was assumed to contain two p-hydroxyphenylacetyl moieties. 17 According to the above data of 1 and 2, the coupling constant among H-5/H-6, H-6/ H-7, and H-7/H-8 was also 10.0 Hz, indicating that these protons are in trans relationships. Thus, we deduced that the structure of 3 also contained a 6R,7 -trans-fused lactone and an 8R-hydroxy group.…”
mentioning
confidence: 90%
“…The chemistry of R. tingitana extract was reported and it showed antimicrobial, bioherbicide, and cytotoxic activities [ 9 , 17 ]. Constituents, such as phenolics, tannins, flavonoids, coumarins, phytosterols, lactones, and essential oils, have been isolated from aboveground biomass of R. tingitana [ 9 , 17 , 18 , 19 ]. Moreover, little is known about the bioactive composition of R. tingitana , and allelochemicals as well as the anti-dengue vector activity of R. tingitana extract was not previously studied.…”
Section: Introductionmentioning
confidence: 99%
“…The stem branches from the base, the plant reaches up to 40 cm with the taproot, which gives rise to the rosette of large radical leaves first, and its flowering time extends from March to May. Preliminary phytochemical examination on aboveground biomass shows the presence of phenolics, tannins, flavonoids, coumarins, volatile oils, glycosides, flavonoids, lactones, esters, large amounts of sterols and/or triterpenes (Abdel-Mogib et al, 1993, Recio et al, 1992).…”
Section: Introductionmentioning
confidence: 99%