A process for the preparation of...

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C - Chemistry, Metallurgy

07

H

C07H 19/19 (2006.01) C07D 473/40 (2006.01) C07F 7/10 (2006.01) C07H 19/16 (2006.01)

Patent

CA 2091732

A process for the preparation of 2-fluoro-9- (2,3,5-tri-O-benzyl-beta-D-arabinofuranosyl)adenine (I) is described. The process involves reacting a protected 2-fluoro adenine with a protected chlorosugar under controlled conditions of temperature (80-85°C) to produce (I), rather than using a process involving fluorinating a 2-substituted nucleoside precursor of (I).

Méthode pour préparer la 2-fluoro-9-(2,3,5-tri-O-benzyl-bêta-D- arabinofuranosyl)adénine (I). Le procédé consiste à faire réagir une 2-fluoroadénine dans certaines conditions de température (80 à 85 degrés C) pour obtenir (I), plutôt que d'employer une méthode de fluoration d'un précurseur de (I) de type nucléoside avec substitution en 2.

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