Intermediate of 6-substituted 1-methyl-1-H-benzimidazole...

Details Intermediate of 6-substituted 1-methyl-1-H-benzimidazole... Intermediate of 6-substituted 1-methyl-1-H-benzimidazole...

2005-09-26

2010-10-19

Saeed, Kamal A (Department: 1626)

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

Organic compounds

Carboxylic acid esters

C564S280000

Reexamination Certificate

active

07816552

ABSTRACT:
A method for preparing a compound having the following formula (I)by reducing a nitro group of the following formula (III)followed by carrying out an intramolecular dehydration condensation, wherein R2is hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen.

REFERENCES:
patent: 4863482 (1989-09-01), Junino et al.
patent: 2004/0082583 (2004-04-01), Cheung et al.
patent: 0 385 850 (1990-09-01), None
patent: 1 022 272 (2000-07-01), None
patent: 1 191 019 (2002-03-01), None
patent: 9-295970 (1997-11-01), None
patent: 11-193276 (1999-07-01), None
patent: 2003-238406 (2003-08-01), None
patent: WO 02/44156 (2002-06-01), None
patent: WO 2003/053440 (2003-07-01), None
Junya Ohmori et al., “Novel AMPA Receptor Antagonists: Synthesis and Structure-Activity Relationships of 1-Hydroxy-7-(1H-imidazol-1-yl)-6-nitro-2,3(1H,4H)—quinoxalinedione and Related Compounds,”J. Med. Chem., vol. 39, pp. 3971-3979, (1996), USA.
English-language International Preliminary Report on Patentability and Written Opinion of the International Searching Aughority, dated Apr. 12, 2007 for International application PCT/JP2005/017573 filed Sep. 28, 2005; Applicants: Sankyo Company Limited et al.
Junya Ohmori et al., “Novel AMPA Receptor Antagonists: Synthesis and Structure-Activity Relationships of 1-Hydroxy-7-(1H-imidazol-1-yl)-6-nitro-2,3) (1H, 4H)—quinoxalinedione and Related Compounds”,Journal of Medicinal Chemistry, (1996), 39, 3971-3979.
Supplementary European Search Report dated Oct. 24, 2008 in European Application EP 05785694.

Affiliated with

Also associated with

Rating

Intermediate of 6-substituted 1-methyl-1-H-benzimidazole... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intermediate of 6-substituted 1-methyl-1-H-benzimidazole..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermediate of 6-substituted 1-methyl-1-H-benzimidazole... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4170189