On Natural and Synthetic Homologues of Dryopteris Phloroglucinol Derivatives.
نویسندگان
چکیده
منابع مشابه
Antioxidant activity of two phloroglucinol derivatives from Dryopteris crassirhizoma.
The rhizome of Dryopteris crassirhizoma NAKAI exhibited significant antioxidant activity, as assessed by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity in vitro. Two phloroglucinol derivatives, flavaspidic acids PB (1) and AB (2), were isolated from the rhizome of D. crassirhizoma by a bioassay-guided fractionation. 1H-, 13C-NMR, and UV analysis were used to determine the ...
متن کاملPhloroglucinol compounds of natural origin: synthetic aspects.
This review covers the synthetic aspects of various naturally occurring phloroglucinols, describing syntheses of 42 compounds and citing 137 references.
متن کاملPhloroglucinol derivatives from Aeromonas hydrophila.
greenhouse-grown red pine seedling, Pinus resinosa, when cultured on malt agar or potato dextrose agar (PDA) showed inhibitory activity against selected test fungi. Sensitive fungi included Ceratocystis ulmi (BUISM.) C. MOREAU, Pythium spp., Rhizoctonia solani KUHN, Cylindrocarpon sp., Fusarium oxysporum SCHLECT., and Sirococcus strobilinus PREUSS. When grown on PDA, a colorless crystalline sol...
متن کاملPhloroglucinol Derivatives as Potent Photosystem II Inhibitors
Studies on structure/activity relationships o f phloroglucinol derivatives tha t had been de signed based on the structures o f grandinol and hom ograndinol. potent photosystem II (PS II) inhibitors in Eucalyptus grandis, revealed th a t two electron-withdraw ing groups which differ by their electron-w ithdraw ing pow er on a phloroglucinol nucleus were essential for activity. A larger differe...
متن کاملMass Spectrometry of Natural and Synthetic Peptide Derivatives
INTRODUCTION Preliminary studies on the use of mass spectrometry for the determination of amino acid sequences in peptides have been published by Biemann a al.1' 2 who reduced the peptide bonds and the terminal carboxyl by LiA1H4 or LiA1D4 to obtain polyamino-alcohols or the corresponding polyamines. For the purpose of obtaining sufficiently volatile derivatives, all later authors have used N-a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1964
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.18-0344