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090 _aB-17098
245 1 0 _aSynthesis of fluorine-containing natural gastrodin and its analogues
490 0 _vJournal of Fluorine Chemistry, 46(3), p.367-374, 1990
520 3 _aReactions of 2,3,4,6-tetra-O-acetyl-n-D_glucopyranosyl bromide (2)with p-hydroxybenzaldehyde, trifluoromethyl and fluoro substi- tuted aniline and 2-amino-6-fluorobenzoic acid gave l-O-(Pformyl- pheny1)-2,3,4,6-tetra-O-acetyl-(3-D-glucopyranoside (3), l-N-(m- trifluoromethylphenylamino)-2,3.4.6-tetra-O-acetyl-~~-D-glucopyra- noside (ra), l-N-(2-carboxyl-3-fluorophenyl)-2,3,4,6-tetra-O-acetyl -Is-D-glucopyranoside (4b)and 1-N-(p-fluorophenyl)-N-(2,3,4,6-tetra -0-acetyl-F-D-glucopyranoside (4~)respectively. 1-0-(perfluoro-2- propoxypropionyl)-O-benzyl-2,3,4,6-tetra-O-acetyl-~~-D-glucopyrano- side (7)and l-O-(m-trifluoromethylphenylaminobenzylidene)-2,3,4,6 -tetra-0-acetyl-\j-D-glucopyranoside (8)were also prepared in sub- sequent reactions. Conversion of the acetyl group to the hydroxyl group yielded the corresponding deprotected product. The compounds formed have been characterized by analysis, IR, 1~ and lgF NMR and mass spectroscopy. The influence of phase-transfer catalysts on the reactions is discussed.
650 1 4 _aGASTRODIN
700 1 2 _aLin, Y. D.
700 1 2 _aLiang, Y. D.
700 1 2 _aLiang, S. G.
700 1 2 _aZhang, S. X.
700 1 2 _aChi, C. S.
856 4 0 _uhttps://drive.google.com/file/d/14-pZjntSy5yJlhd5WPfyzYdmkyL1Y95M/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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