Process for producing oxycarbonyl-substituted piperazine...

Details Process for producing oxycarbonyl-substituted piperazine... Process for producing oxycarbonyl-substituted piperazine...

2003-09-02

2009-08-04

Wilson, James O (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C544S399000

Reexamination Certificate

active

07569690

ABSTRACT:
If an organic solvent with a water content of 15% or less is used when an oxycarbonyl-substituted piperazine derivative is produced from a piperazine derivative, the piperazine derivative can be oxycarbonylated.

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