Details for Patent: 6,528,678
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Summary for Patent: 6,528,678
Title: | Phosgene-free process for preparing carbamates |
Abstract: | A phosgene-free method for preparing a carbamate from a compound containing an amine group involves reacting the compound with an alkylating agent in the presence of carbon dioxide and cesium carbonate. A reaction can take place under standard pressure and temperature conditions and produces carbamates in a high yield with low by-product formation. |
Inventor(s): | Lee; Byung H. (Kalamazoo, MI) |
Assignee: | Pharmacia& Upjohn Company (Kalamazoo, MI) |
Application Number: | 10/000,756 |
Patent Claim Types: see list of patent claims | Process; Use; |
Drugs Protected by US Patent 6,528,678
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International Family Members for US Patent 6,528,678
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Australia | 3246102 | ⤷ Try a Trial | |||
Canada | 2426466 | ⤷ Try a Trial | |||
European Patent Office | 1334084 | ⤷ Try a Trial | |||
Japan | 2004512316 | ⤷ Try a Trial | |||
New Zealand | 525411 | ⤷ Try a Trial | |||
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