Methods to store transition metal organophosphorous ligand based catalysts
US-10478812-B2 · Nov 19, 2019 · US
US2017210770A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017210770-A1 |
| Application number | US-201715402857-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 10, 2017 |
| Priority date | Jul 27, 2004 |
| Publication date | Jul 27, 2017 |
| Grant date | — |
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The invention is related to phosphorus substituted anti-viral inhibitory compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
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1 - 58 . (canceled) 59 . A method of preparing compound XXX: comprising: converting compound 8: in the presence of ethyl alanine ester HCl and phenol to afford compound 11: and separating compound 11 using chiral column chromatography to afford compound XXX. 60 . The method of claim 59 , wherein the conversion of compound 8 to compound 11 further comprises pyridine and triethylamine. 61 . The method of claim 60 , wherein the conversion of compound 8 to compound 11 further comprises a mixture of 2,2′dithiodipyridine, triphenylphosphine and pyridine. 62 . The method of claim 59 , wherein compound 8 is prepared by a method comprising: converting compound 7: in the presence of ammonium hydroxide and methanol to afford compound 8. 63 . The method of claim 62 , wherein the conversion of compound 7 to compound 8 further comprises bromotrimethylsilane and dimethylformamide. 64 . The method of claim 63 , wherein the conversion of compound 7 to compound 8 further comprises NaHCO 3 . 65 . A method of preparing compound XXX: comprising: converting compound 7: to compound 8: converting compound 8 to compound 11: and separating compound 11 using chiral column chromatography to afford compound XXX. 66 . A compound which is compound XXX, or a pharmaceutically acceptable salt thereof, prepared by the method of claim 59 . 67 . A compound which is compound XXX, or a pharmaceutically acceptable salt thereof, prepared by the method of claim 65 .
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