Process for preparation of 2-methyl-2′-phenylpropionic acid derivatives and novel intermediate compounds
US8633223B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Dec 26, 2012 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Dec 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/612
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for preparing 2-methyl-2′-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefor. According to the present invention, pharmaceutically useful 2-methyl-2′-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.