Improved process for preparing xanthine derivatives, in...

Details Improved process for preparing xanthine derivatives, in... Improved process for preparing xanthine derivatives, in...

C - Chemistry, Metallurgy

07

D

C07D 473/06 (2006.01) C07D 319/08 (2006.01) C07D 405/12 (2006.01) C07D 519/00 (2006.01)

Patent

CA 2140434

- 31 - Abstract The present invention relates to an improved preparation process for xanthines substituted in the 8-position via alkaline ring-closure reaction of the corresponding uracils in the presence of lithium hydroxide.

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