Purification of (s,s)-8-benzyl-2,8-diazabicyclo[4.3.o]nonane...

Details Purification of (s,s)-8-benzyl-2,8-diazabicyclo[4.3.o]nonane... Purification of (s,s)-8-benzyl-2,8-diazabicyclo[4.3.o]nonane...

C - Chemistry, Metallurgy

07

D

C07D 471/04 (2006.01) C07B 57/00 (2006.01) C07D 209/00 (2006.01) C07D 221/00 (2006.01)

Patent

CA 2331526

A process for purifying (S,S)-8-benzyl--2,8-diazabicyclo[4.3.0]nonane, (see above formula) comprising: reacting a mixture of (S,S)-8-benzyl-2,8-diazabicyclo--[4.3.0]nonane and (R,R)-8-benzyl-2,8-diazabicylo--[4.3.0]nonane with L-(+)-tartaric acid in an alcohol/water solvent mixture; and converting (S,S)-8-benzyl-2,8-diazabicyclo-[4.3.0]nonane L-(+)-tartrate formed in the reacting step into free (S,S)-8-benzyl-2,8-diazabicyclo[4.3.0]nonane by reacting the (S,S)-8-benzyl-2,8-diazabicyclo[4.3.0]nonane L-(+)-tartrate with a base.

L'invention concerne un procédé de préparation de (S,S)-8-benzyle-2,8-diazabicyclo[4.3.0]nonane.

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