Carbonarin antiinsectan metabolites
AssigneesThe United States of America as represented by the Secretary of Agriculture, University of Iowa Research Foundation and Biotechnology Research and Development Corp.
InventorsAli A. Alfatafta, Patrick F. Dowd, James B. Gloer, Donald T. Wicklow
Life of this patent
Estimating the term…
Abstract
Carbonarins A, B, C, D, E, F, G, and H have been isolated from the sclerotia of the fungus Aspergillus carbonarius. The carbonarius are effective for controlling Coleopteran and Lepidopteran insects. The carbonarins have the structure: ##STR1## wherein: R.sub.1 is a hydrogen atom or a hydroxy group; R.sub.2 is a hydrogen atom or a methoxy group; R.sub.3 is a hydrogen atom or a naphthopyrone group; and X is an oxygen atom or an NH group.
Claims27
A substantially pure carbonarin compound having the formula:
- ##STR14## wherein:
- R.sub.1 is a hydrogen atom or a hydroxy group;
- R.sub.2 is a hydrogen atom or a methoxy group;
- R.sub.3 is a hydrogen atom or a naphthopyrone group, and X is an oxygen atom.
A substantially pure carbonarin compound having the formula:
- ##STR16## wherein:
- R.sub.1 is a hydrogen atom or a hydroxy group;
- R.sub.2 is a hydrogen atom or a methoxy group;
- R.sub.3 is a hydrogen atom or a naphthopyrone group, and X is an NH group.
A substantially pure carbonarin selected from the group consisting of:
- Carbonarin C:
- ##STR19## Carbonarin D:
- ##STR20## and Carbonarin E:
- ##STR21##
A method of controlling insects comprising applying an effective amount of an insecticide selected from the group consisting of carbonarins C, D, and E.
Dependencies are inferred from the claim text.