Avermectin derivatives
US4895837A · kind A · utility
21Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1989 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jan 13, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P33/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There are disclosed novel avermectin .DELTA. 23,24-derivatives (also referred to as 23,24-dehydro compounds). The compounds are prepared by selective dehydration of avermectin A2 or B2 compounds. The avermectin compounds have utility as anti-parasitic agents and compositions for that use are also disclosed. The compounds are also highly potent insecticides against agricultural pests. The .DELTA. 23,24-avermectin compounds have increased activity relative to the A2 or B2 compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.