Guajadials C-F, four unusual meroterpenoids from Psidium guajava
نویسندگان
چکیده
منابع مشابه
Cytotoxic Meroterpenoids with Rare Skeletons from Psidium guajava Cultivated in Temperate Zone
Three new meroterpenoids, guajavadials A-C (1-3), were isolated from Psidium guajava cultivated in temperate zone. Their structures were established by extensive spectroscopic evidence and electronic circular dichroism (ECD) calculations. Guajavadial A (1) represents a novel skeleton of the 3,5-diformylbenzyl phloroglucinol-coupled monoterpenoid, while guajavadials B (2) and C (3) are new adduc...
متن کاملGuava (Psidium guajava) | Feedipedia
Guava, common guava, yellow guava [English]; goyavier, goyave [French]; goiaba, guaiaba, guaiava, goiabeira, goiabeiro, araça-goiaba, araça-guaçu [Portuguese]; guayaba, guayabo, guayaba manzana [Spanish]; koejawel [Afrikaans]; guave [Dutch]; Echte Guave [German]; gweba [Hausa]; jambu batu, jambu biji [Indonesian]; guaiava [Italian]; jambu kluthuk [Javanese]; amapera [Kinyarwanda]; mpera [Kiswah...
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In continuation of our studies on the phytochemical investigation of medicinal plants available in the foothills of Darjeeling and Teri, we report herein the isolation of two triterpenoids betulinic acid and lupeol from the leaf extract of Psidium guajava and their potential antimicrobial and phytotoxic activities. All the structures of the isolated compounds were confirmed by spectral (IR, NMR...
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Sixteen carotenoids were isolated from the flesh of Brazilian red guavas (Psidium guajava L.). Their structures were established by means of UV-visible, 400 and 500 MHz (1)H NMR, 120 and 125 MHz (13)C NMR, mass, and circular dichroism spectra. The carotenoids were identified as phytofluene, (all-E)-, (9Z)-, (13Z)-, and (15Z)-beta-carotene, (all-E)-gamma-carotene, (all-E)-, (9Z)-, (13Z)-, and (1...
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A (GA) n and (GT) n microsatellite-enriched library was constructed and 23 nuclear simple sequence repeat (SSR) loci were characterized in the guava species ( Psidium guajava L.). All SSR loci were found to be polymorphic after screening for diversity in different cultivars, and across-taxa amplification tests showed the potential transferability of most SSR markers in three other Psidium speci...
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ژورنال
عنوان ژورنال: Natural Products and Bioprospecting
سال: 2013
ISSN: 2192-2195,2192-2209
DOI: 10.1007/s13659-012-0102-4