[EN] 1,3 DIHYDROFURO [3,4-c]PYRIDINES AND THEIR PREPARATION<br/>[FR] 1,3 DIHYDROFURO [3,4-C]PYRIDINES ET PROCEDE PERMETTANT DE LES PREPARER
申请人:DSM IP ASSETS BV
公开号:WO2005090356A1
公开(公告)日:2005-09-29
The present invention relates to novel 1,3-dihydrofuro[3,4-c]pyridines which are useful intermediates in the synthesis of pyridoxines and a method for their preparation by cobalt(I) complex-catalysed [2 + 2 + 2]-cycloaddition of di-[(3-dimethyl-C1-4-alkoxysilyl)2-propynyl)] ethers with acetonitrile.
Pyridoxinester enthaltendes Präparat, Verfahren zu dessen Herstellung und dessen Verwendung
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0678293A2
公开(公告)日:1995-10-25
Die vorliegende Erfindung betrifft ein topisch applizierbares Mittel, welches mindestens eine lipophile Phase sowie eine physiologisch wirksame Menge Pyridoxin enthält. Das Pyridoxn liegt als Pyridoxintripropionat vor. Die Menge an Pyridoxintripropionat beträgt 0,05-30 Gew% der Gesamtmenge des Mittels.
On treatment with perfluoro-cis-2,3-dialkyloxaziridines, mono-, bi-, and tricyclic nitrogen heteroaromatics afford the corresponding N-oxides under mild reaction conditions and in medium to high yields. The course of the reaction is not altered by the presence of various residues on the ring or in side chains and the N-oxides of polyfunctional, naturally occurring compounds have been prepared.
[EN] METHODS FOR THE SYNTHESIS OF PYRIDOXAMINE<br/>[FR] METHODES DE SYNTHESE DE PYRIDOXAMINE
申请人:BIOSTRATUM INC
公开号:WO2005077902A3
公开(公告)日:2006-01-12
Chemistry of Vitamin B<sub>6</sub>. I. Tautomerism<sup>*</sup>