Oxidative process for preparing narwedine derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07D 491/06 (2006.01) C07D 491/10 (2006.01)

Patent

CA 2215633

A process for the preparation of a compound of formula (2), comprises phenolic oxidation of a compound of formula (1) wherein X1 and X2 are independently selected from H or a protecting group for the phenolic function, e.g. acyl or trialkylsilyl; groups A1, A2, B1, B2 and Y are selected so as to render the nitrogen atom non-basic; Z is a blocking group e.g. Br or t-butyl; and R is H, C1-20 alkyl, C3-20 aryl, C4-20 arylalkyl, and wherein the process is carried out in a two-phase liquid system comprising an aqueous base and an organic solvent having a dielectirc constant below 4.8.

La présente invention décrit un procédé de préparation d'un composé de formule (2), comportant une oxydation phénolique d'un composé de formule (1) dans lequelle X<1> et X<2> sont choisis indépendamment parmi H ou un groupe de protection pour la fonction phénolique, par exemple acyle ou trialkylsilyle; les groupes A<1>, A<2>, B<1>, B<2> et Y sont sélectionnés de telle sorte que l'atome d'azote ne soit plus alcalin; Z est un groupe de blocage, par exemple Br ou t-butyle; et R représente H, C1-20 alkyle, C3-20 aryle, C4-20 arylalkyle, ce procédé étant mené à bien dans un système liquide à deux phases comportant une base aqueuse et un solvant organique ayant une constante diélectrique inférieure à 4,8.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Oxidative process for preparing narwedine derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxidative process for preparing narwedine derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxidative process for preparing narwedine derivatives will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1849220

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.