Piperazine derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C544S358000

Reexamination Certificate

active

07985751

ABSTRACT:
Compounds of general formula (I)in which R1and R0have any of the meanings given in the specification have affinity for sigma receptors and are useful in the treatment of disorders of the central nervous system.

REFERENCES:
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patent: 5736546 (1998-04-01), Kawashima et al.
patent: 2003/0171347 (2003-09-01), Matsumoto
patent: WO 91/09594 (1991-07-01), None
patent: WO 2004/110387 (2004-12-01), None
Kazunori Kawamura et al., “Improved syntheis . . . ” Annals of Nuclear Medicine, vol. 18, No. 2, 165-1168, 2004.
Matsumoto et al., “Structure-activity comparison . . . ”, Pharmacology Biochemistry & Behavior 77 (2004) 775-581.
Fujimura et al., “Synthesis, Structure . . . ” Bio & Med Chem, vol. 5, No. 8 pp. 1675-1683, 1997.
Elsinga et al., “Evaluation of Fluorinated sigma receptor . . . ”, Synapse 52:29-37 2004.

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