6-(3,4-Methylenedioxy-6-benzylalkylaminoethylphenylacetyl)benzoic acid alkyl ester derivatives
US3946041A · kind A · utility
0Cited by
2References
3Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 8, 1973 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Aug 8, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the preparation of novel rheadan-type alkaloids and to novel intermediates useful in the preparation thereof. The process utilizes as starting materials a known class of alkaloids of the narcotine or of the hydrastine type. Certain of the said novel intermediates are also pharmaceutically useful in and of themselves. Additionally, certain of the novel intermediates can be converted into other type alkaloids which are also pharmaceutically useful.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.