A phosgene and peroxide-free one-pot tandem synthesis of isatoic anhydrides involving anthranilic acid, Boc anhydride, and 2-chloro-N-methyl pyridinium iodide
摘要:
A phosgene and peroxide-free approach for the synthesis of isatoic anhydrides has been described. The synthesis involves the carbamate formation with Boc anhydride followed by in situ cyclization to afford the isatoic anhydride. The importance of this synthetic strategy is in the ease of operation, scalability, and preparation from readily available raw materials. (C) 2013 Elsevier Ltd. All rights reserved.
A compound represented by the general formula (I), a pharmaceutically acceptable acid addition salt thereof or a pharmaceutically acceptable C1-C6 alkyl addition salt thereof, and their medical applications. These compounds inhibit the action of chemokines such as MIP-1&agr; and/or MCP-1 on target cells, and are useful as therapeutic and/or preventative drugs in diseases, such as atheroclerosis, rheumatoid arthritis, and the like where blood monocytes and lymphocytes infiltrate into tissues.
Remedies or prophylactics for diseases in association with chemokines
申请人:Teijin Limited
公开号:US07390830B1
公开(公告)日:2008-06-24
This invention provides remedies or prophylactics for diseases in association with chemokines such as MIP-1 α and/or MCP-1. Namely, remedies or prophylactics for diseases in association with the chemokines such as rheumatoid arthritis or nephritis contain, as the active ingredient, cyclic amine derivatives represented by the following formula (I), pharmaceutically acceptable acid addition salts thereof or pharmaceutically acceptable C1-C6 alkyl addition salts thereof.