14786-40-4Relevant articles and documents
preparing methods of nobiletin
-
Paragraph 0142-0143; 0160-0162, (2021/08/24)
The present invention provides a process for preparing nobiletin. The present invention relates to a method for preparing nobiletin by using a specific reagent.
Synthesis and biological evaluation of a series of tangeretin-derived chalcones
Quintin, Jerome,Desrivot, Julie,Thoret, Sylviane,Menez, Patrick Le,Cresteil, Thierry,Lewin, Guy
scheme or table, p. 167 - 169 (2009/04/10)
A series of chalcones polyoxygenated on the ring A (with pentamethoxy or 2′-hydroxy-3′,4′,5′,6′-tetramethoxy substitution patterns) was synthesized from tangeretin, a natural Citrus flavonoid. These chalcones were evaluated for their antiproliferative, ac
13C-Nuclear Magnetic Resonance (NMR) Spectral Studies on Polysubstituted Flavonoids. I. 13C-NMR Spectra of Flavones
Iinuma, Munekazu,Matsuura, Shin,Kusuda, Kousuke
, p. 708 - 716 (2007/10/02)
The 13C-NMR spectra of 61 flavone derivatives were measured in dimethyl sulfoxide.By consideration of the chemical shifts of skeletal carbons, the parameters (α and β values) and correction factor (o value) necessary for calculating their carbon shifts were deduced.The skeletal carbons of polysubstituted flavones and flavonols could easily be assigned by the use of these values and SCS of OMe or OH.The 13C-NMR spectra were confirmed to give useful information that could not be obtained from other spectral data.The data were applied for the structure elucidation of unknown polysubstituted flavones.Keywords - 13C-NMR spectra; polysubstituted flavones; α value; β value; o value; extensive additivity rule