4.alpha.-substituted avermectin derivatives
US5262400A · kind A · utility
5Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | May 19, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P33/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Avermectin compounds are substituted at the 4a-position: the 4a-methyl group is first derivatized with a hydroxy group which is then substituted with a variety of alkyl, alkoxy alkyl, or polyalkoxy alkyl groups and derivatives thereof. The compounds are potent antiparasitic and anthelmintic agents and compositions for such uses are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.