melochia chamaedrys/alkaloid

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Bioassay-guided isolation of antifungal alkaloids from Melochia odorata.

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An alkaloidal extract of the leaves of Melochia odorata exhibited antifungal activity against Candida albicans, Cryptococcus neoformans and Saccharomyces cerevisiae using a TLC bioautographic method. Bioassay-guided fractionation of this extract using separation by normal and reverse

Alkaloids from Melochia chamaedrys.

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Investigation of the chemical constituents from the roots of Melochia chamaedrys (Sterculiaceae) resulted in the isolation of two quinolinone alkaloids: a new alkaloid, named chamaedrone (1), and a known alkaloid, antidesmone (2). Their structures and stereochemistry were elucidated on the basis of

Paliasanines A-E, 3,4-Methylenedioxyquinoline Alkaloids Fused with a Phenyl-14-oxabicyclo[3.2.1]octane Unit from Melochia umbellata var. deglabrata

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Five new quinoline alkaloids, paliasanines A-E (1-5), and 17 known compounds (6-22) were isolated from a methanol extract of Melochia umbellata var. deglabrata leaves. Their chemical structures were elucidated by analysis of HRMS and 1D and 2D NMR

4-Quinolone alkaloids from Melochia odorata.

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The methanol extract of Melochia odorata yielded three 4-quinolone alkaloids including waltherione A (1) and two new alkaloids, waltherione C (2) and waltherione D (3). Waltheriones A and C showed significant activities in an in vitro anti-HIV cytoprotection assay at concentrations of 56.2 and 0.84

Pharmacological properties of melochinine, an alkaloid producing Central American cattle paralysis.

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A Central American cattle paralysis is produced by ingestion of the plant Melochia pyramidata L. (Sterculiaceae). Its main alkaloid "melochinine" has been shown to produce paralysis, bradypnea, bradycardia and hypotension in laboratory animals after p.o., i.p. and i.v. applications. Bradycardia and

[Alkaloids from Sterculiaceae. I. Peptide alkaloids from Melochia corchorifolia].

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Melosatin D: A New Isatin Alkaloid from Melochia tomentosa Roots.

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Constituents of the roots of Melochia chamaedrys.

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The cyclic peptide alkaloid, chamaedrine, was isolated from the roots of Melochia chamaedris (Sterculiaceae), along with four known cyclic peptide alkaloids (adouetine X, frangulaline, scutianine B and scutianine C), and waltherione A, parasorbic acid, propacine, and (-)-epicatequine. Their

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