Process for making spiro isobenzofuranone compounds

Details Process for making spiro isobenzofuranone compounds Process for making spiro isobenzofuranone compounds

2005-08-02

2005-08-02

Cole, Monique T. (Department: 1743)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C514S409000, C514S407000, C514S397000, C514S314000, C514S302000, C514S275000, C514S253010

Reexamination Certificate

active

06924291

ABSTRACT:
This invention relates to a process for making spiro isobenzofuranone compounds by coupling of an aminopyrazine fragment with a spirolactone piece.

REFERENCES:
patent: 6191160 (2001-02-01), Gao et al.
patent: 6313298 (2001-11-01), Gao et al.
patent: 6326375 (2001-12-01), Fukami et al.
patent: 6335345 (2002-01-01), Fukami et al.
patent: 6649624 (2003-11-01), Fukami et al.
patent: WO 00/27845 (2000-05-01), None
patent: WO 01/14376 (2001-03-01), None
patent: WO 01/87853 (2001-11-01), None

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