C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 303/22 (2006.01) C07C 309/66 (2006.01)
Patent
CA 2478650
A process for the preparation of a compound of formula (I); in which R represents H or an acid protecting group which comprises reacting a compound of formula (II); in which R is as previously defined with a compound of formula (III); wherein X is a suitable leaving group in the presence of a base and using water as a diluent.
L'invention concerne un procédé de préparation d'un composé de formule générale (I) dans laquelle R représente H ou un groupe protecteur d'acide. Ce procédé consiste à faire réagir un composé de formule générale (II) dans laquelle R a la signification indiqué précédemment, avec un composé de formule générale (III) dans laquelle X est un groupe partant approprié, en présence d'une base et au moyen d'eau en tant que diluent.
Astrazeneca Ab
Fetherstonhaugh & Co.
LandOfFree
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