squamocin/annona squamosa

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[The Relative Configuration of Acetogenins Isolated from Annona squamosa: Annonin I (Squamocin) and Annonin VI].

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Ielogoties Reģistrēties

Annonin I ( 1) and anonin VI ( 9) were isolated from the seeds of ANNONA SQUAMOSA L. (Annonaceae). The constitution of 1 is identical with that of squamocin, isolated by Fujimoto et al. (8). The relative configuration of 1 was elucidated by X-ray diffraction analysis of a derivative. The

Squamocin-O(1) and squamocin-O(2), new adjacent bis-tetrahydrofuran acetogenins from the seeds of Annona squamosa.

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Ielogoties Reģistrēties

Two bis-tetrahydrofuran acetogenins, squamocin-O(1) (1) and squamocin-O(2) (2), were isolated from a MeOH extract of seeds of Annona squamosa L. Their structures were determined by spectral means including precursor-ion scanning mass spectral analysis for their aminal derivatives. The configurations

The fruit of Annona squamosa L. as a source of environmental neurotoxins: From quantification of squamocin to annotation of Annonaceous acetogenins by LC-MS/MS analysis.

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Ielogoties Reģistrēties

Annonaceous acetogenins (AAGs) are neurotoxins possibly responsible for atypical Parkinsonism/dementia clusters, via the consumption of edible Annonaceae fruits. Their presence was investigated in fruit pulps of Annona squamosa from different locations. Qualitative analysis of other AAGs was

Squamocin, a new cytotoxic bis-tetrahydrofuran containing acetogenin from Annona squamosa.

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Ielogoties Reģistrēties

Antimicrobial and cytotoxic constituents from the seeds of Annona squamosa.

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Ielogoties Reģistrēties

Annotemoyin-1, Annotemoyin-2, squamocin and cholesteryl glucopyranoside were isolated from the seeds of Annona squamosa. These compounds and plant extracts showed remarkable antimicrobial and cytotoxic activities.

Four cytotoxic annonaceous acetogenins from the seeds of Annona squamosa.

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Ielogoties Reģistrēties

Four new annonaceous acetogenins (ACGs), squamocin-I (1), II (2) and III (3) and squamoxinone-D (4), together with seven known ACGs (5-11), were isolated from the seeds of Annona squamosa. The structures of all isolates were elucidated and characterised by spectral and chemical methods. Compounds

Callus cultures of Annona squamosa for the production of annonaceous acetogenins.

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Ielogoties Reģistrēties

Callus cultures of Annona squamosa were induced using different explants including petals, seed contents (megagametophyte and embryo) and fruits (mesocarp). Growth of the calli induced from the explants was found to be influenced by the type, concentration and ratio of auxin vs. cytokinin. The

Larvicidal and cytotoxic potential of squamocin on the midgut of Aedes aegypti (Diptera: Culicidae).

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Ielogoties Reģistrēties

Acetogenins are secondary metabolites exclusively produced by Annonaceae, which have antitumor, cytotoxic, and pesticide activities. In this study, we evaluated the larvicidal and cytotoxic effect of squamocin from Annona squamosa on Aedes aegypti (Diptera: Culicidae) midgut. The compound was

Three new antitumor annonaceous acetogenins from the seeds of Annona squamosa.

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Ielogoties Reģistrēties

Two new annonaceous acetogenins squamocin P (2) and annosquatin III (3) and one new ACG precursor dieporeticenin B (1) along with five known precursors (4-8) were isolated from the seeds of Annona squamosa. Their structures were ascertained by chemical methods and various spectral evidences. These

[Chemical constituents from the seeds of Annona squamosa].

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Ielogoties Reģistrēties

OBJECTIVE To study the antitumor active constituents of the seeds from Annona squamosa L. (Annonaceae). METHODS Various chromatographic techniques were used to isolate and purify the constituents. Their physico-chemical properties and spectral data were determined to elucidate the

Nematicidal and antifungal activities of annonaceous acetogenins from Annona squamosa against various plant pathogens.

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Ielogoties Reģistrēties

The methanol extract of Annona squamosa seeds was highly active against two phytoparasitic nematodes, Bursaphelenchus xylophilus and Meloidogyne incognita. It efficiently suppressed plant diseases, caused by Phytophthora infestans and Puccinia recondita. Ten annonaceous acetogenins (AAs) were

Squamocin induce histological and ultrastructural changes in the midgut cells of Anticarsia gemmatalis (Lepidoptera: Noctuidae).

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Ielogoties Reģistrēties

Annonaceous acetogenins (Annona squamosa Linnaeus) comprises of a series of natural products which are extracted from Annonaceae species, squamocin proved to be highly efficient among those agents. Squamocin is mostly referred as a lethal agent for midgut cells of different insects, with toxic

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