Details for Patent: 6,040,344
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Summary for Patent: 6,040,344
Title: | Formoterol process |
Abstract: | A method is disclosed for the preparation of optically pure isomers of formoterol by the reaction of an optically pure 4-benzyloxy-3-formamidostyrene oxide with an optically pure 4-methoxy-.alpha.-methyl-N-(phenylmethyl)benzeneethanamine followed by debenzylation. Useful intermediates in the process are also disclosed, as are the novel L-tartrate salt of R,R-formoterol and pharmaceutical compositions thereof. |
Inventor(s): | Gao; Yun (Southborough, MA), Hett; Robert (Aarau, CH), Fang; Kevin Q. (Wellesley, MA), Wald; Stephen A. (Sudbury, MA), Redmon; Martin P. (Marlborough, MA), Senanayake; Chris Hugh (Shrewsbury, MA) |
Assignee: | Sepracor Inc. (Marlborough, MA) |
Application Number: | 09/083,010 |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for patent 6,040,344 |
Patent Claim Types: see list of patent claims | Compound; Composition; Delivery; Dosage form; |
Drugs Protected by US Patent 6,040,344
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International Family Members for US Patent 6,040,344
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Austria | 219047 | ⤷ Try a Trial | |||
Austria | 259779 | ⤷ Try a Trial | |||
Australia | 2705900 | ⤷ Try a Trial | |||
Australia | 5175598 | ⤷ Try a Trial | |||
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