Process for producing vitamin D derivative using photoreaction
US8212059B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J71/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are provided a novel process for producing [{(5Z,7E)-(1S,3R,20S)-1,3-dihydroxy-9,10-secopregna-5,7,10(19),16-tetraen-20-yl}oxy]-N-(2,2,3,3,3-pentafluoropropyl)acetamide, which process is characterized by irradiating a compound represented by the formula:with UV to ring-open the compound, and then isomerizing the resulting compound; an intermediate useful for carrying out the process; and a process for producing the intermediate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.