Reissue Patent
- Patent Title: Nitrogen-containing heterocyclic carboxamide derivatives or salts thereof and antiviral agents comprising the same
- Patent Title (中): 含氮杂环羧酰胺衍生物或其盐和包含其的抗病毒剂
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Application No.: US12869074Application Date: 2010-08-26
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Publication No.: USRE43748E1Publication Date: 2012-10-16
- Inventor: Yousuke Furuta , Hiroyuki Egawa , Nobuhiko Nomura
- Applicant: Yousuke Furuta , Hiroyuki Egawa , Nobuhiko Nomura
- Applicant Address: JP Tokyo
- Assignee: Toyama Chemical Co., Ltd.
- Current Assignee: Toyama Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP10-250441 19980820; JP11-145922 19990526
- Main IPC: C07D241/28
- IPC: C07D241/28 ; A61K31/495 ; A61K31/50 ; A61K31/505 ; A61K31/53 ; C07D237/04 ; C07D237/06 ; C07D239/20 ; C07D239/24 ; C07D253/06 ; C07D253/065
Abstract:
Nitrogen-containing heterocyclic carboxamide derivatives represented by the following general formula: wherein ring A is a substituted or unsubstituted pyrazine, pyrimidine, pyridazine or triazine ring; R1 is O or OH; R2 is a hydrogen atom, an acyl group or a substituted or unsubstituted carbamoylalkyl or carboxyalkyl group; and the broken line represents a single bond or a double bond; or salts thereof are useful for preventing and treating virus infections and especially influenza virus infections.
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