Articles with "alkaloids portulaca" as a keyword



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Two new alkaloids from Portulaca oleracea L. and their bioactivities.

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Published in 2019 at "Fitoterapia"

DOI: 10.1016/j.fitote.2019.05.005

Abstract: Two new indole alkaloids, identified as (E)-1-(5,6-dihydroxy-1H-indol-1-yl)-3-(4-hydroxyphenyl)prop-2-en-1-one, named oleraindole A (1), and (E)-1-(5,6-dihydroxy-1H-indol-1-yl)-3-(4-hydroxy-3-methoxyphenyl)prop-2-en-1-one, named oleraindole B (2), together with five known indole alkaloids, (-)-neoechinulin A (3), neoechinulin D (4), isoechinulin A (5), MT-6 (6) and… read more here.

Keywords: two new; new alkaloids; oleracea bioactivities; portulaca oleracea ... See more keywords
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Two new similar alkaloids from Portulaca oleracea L.

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Published in 2017 at "Natural Product Research"

DOI: 10.1080/14786419.2017.1292507

Abstract: Abstract Two novel alkaloids named oleraciamide A (1) and oleraciamide B (2) were isolated from Portulaca oleracea L., and spectroscopic methods including 1D and 2D nuclear magnetic resonance and high-resolution electrospray ionisation quadrupole-time of flight… read more here.

Keywords: new similar; two new; portulaca oleracea; similar alkaloids ... See more keywords

Two new ester alkaloids from Portulaca oleracea L. and their bioactivities.

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Published in 2022 at "Natural product research"

DOI: 10.1080/14786419.2022.2161542

Abstract: Two new ester alkaloids were isolated from Portulaca oleracea L., identified as (5-aminofuran-2-yl) methyl acetate (1) named oleracone N and 4(S)-ethyl 3-acetamido-3-(dihydroxyamino) propanoate (2) named oleracone O. The structures were elucidated via spectroscopic methods, including… read more here.

Keywords: new ester; portulaca oleracea; two new; ester alkaloids ... See more keywords