Process for the preparation of phenyltetrazole derivatives
US7385062B2 · kind B2 · utility
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Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Oct 25, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F3/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of phenyltetrazole derivatives of formula (II) wherein R and Y are as defined in the disclosure, by direct ortho-metallation of (tetrazol-5-γl)benzene. The compounds of formula (II) are useful intermediates for the preparation of angiotensin II antagonists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.