Method for preparing intermediate of 4-methoxypyrrole derivative
US10710961B2 · kind B2 · utility
3Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing intermediates of 4-methoxypyrrole derivatives. The preparation method according to the present invention has advantages that a high-temperature reaction is not required as a whole, inexpensive and non-explosive reagents are used instead of (trimethylsilyl)diazomethane, and further an intermediate of 4-methoxy pyrrole derivatives can be prepared as a whole at a high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.