Process for preparing 3-(4-aminoethoxybenzoyl)benzo[b]thiophenes
US4358593A · kind A · utility
74Cited by
4References
19Claims
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Key dates
| Filing date | Apr 3, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Apr 3, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The use of particularly advantageous protecting groups for the hydroxy groups of 6-hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophenes provides a high-yielding process for the preparation of such compounds having a 4-(2-aminoethoxy)benzoyl 3-group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.