Invention Application
- Patent Title: Process for the Production of Fused, Tricyclic Sulfonamides
- Patent Title (中): 熔融三环磺酰胺生产工艺
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Application No.: US12731053Application Date: 2010-03-24
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Publication No.: US20110034691A1Publication Date: 2011-02-10
- Inventor: Michael S. Dappen , Jacek J. Jagodzinski , Lee H. Latimer , Jing Wu , Jollie Duaine Godfrey, JR. , Robert Michael Matunas , Thomas W. Drabb , Gary Probst
- Applicant: Michael S. Dappen , Jacek J. Jagodzinski , Lee H. Latimer , Jing Wu , Jollie Duaine Godfrey, JR. , Robert Michael Matunas , Thomas W. Drabb , Gary Probst
- Assignee: Elan Pharmaceuticals, Inc.
- Current Assignee: Elan Pharmaceuticals, Inc.
- Main IPC: C07D471/04
- IPC: C07D471/04 ; C07D231/12 ; C07D401/12 ; C07D231/16

Abstract:
The present invention provides methods, i.e., scalable or large-scale processes for the production of fused, tricyclic sulfonamido analogs, such as substituted or unsubstituted 5-(aryl-sulfonyl)-4,5-dihydro-1H-pyrazolo[4,3-c]quinolines and 5-(heteroaryl-sulfonyl)-4,5-dihydro-1H-pyrazolo[4,3-c]quinolines. Exemplary methods of the invention include an intra-molecular cyclization step, in which a carbon-nitrogen bond is formed, and which employs a copper-based catalyst that contains at least one organic ligand, such as DMEDA. The invention further provides compounds, which are useful as intermediates in the methods of the invention.
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