Process for the preparation of benzo [d]...

Details Process for the preparation of benzo [d]... Process for the preparation of benzo [d]...

2007-11-06

2007-11-06

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S015000

Reexamination Certificate

active

10541607

ABSTRACT:
A process for the preparation of benzo[d]isoxazol-3-yl-methanesulfonic acid of formula (I), or a salt thereof, and the intermediates thereof, useful as an intermediate in the preparation of zonisamide.

REFERENCES:
patent: 4172896 (1979-10-01), Uno et al.
patent: WO 02/070495 (2002-09-01), None
patent: WO 03/040096 (2003-05-01), None
patent: WO 03/072552 (2003-09-01), None
Patent Abstracts of Japan, vol. 0021, No. 10 (C-022), Sep. 13, 1978 -& JP-53 077057 A (Dainippon Pharmaceut Co Ltd), Jul. 8, 1978 cited in the application scheme p. 443.
Database Caplus Online !, Chemical Abstracts Service, Columbus, Ohio, US;, Uno, Hitoshi et al:, “Studies on 3-substituted 1,2-benziasoxazole derivatives. VII. Catalytic reduction of 3-sulfamoylmethyl-1,2-benzisoxazole and reactions of the resulting products”, XP002284802, retrieved from STN, Database accession No. 1982: 181246, RN 81534-20-5, abstract & Chemical & Pharmaceutical Bulletin, 30(1), 333-5 CODEN: CPBTAL; ISSN: 0009-2363, 1982.

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