Mono- and diepoxide derivatives of ll-f28249 compounds
CA 1300616 C · Owner: Wyeth Holdings Corporation · Inventors: Tamura, Susan Yoshiko; Asato, Goro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
30,498, MONO- AND DIEPOXIDE DERIVATIVES OF LL-F28249 COMPOUNDS, ABSTRACT, The present invention relates to novel mono- C(26,27) and diepoxide C(14,15;26,27) derivatives of LL-F28249.alpha. .beta. .epsilon. 5, .theta. and ? compounds. The LL-F28249 compounds (collectively) are isolates from the fermentation broth of Streptomyces cyaneogriseus subspecies noncyanogenus having deposit accession number NRRL- 15773. The compounds of this present invention are derived by regioselective epoxidation of 5,23-0,0-bissilylated LL-F28249 compounds at low temperature followed by desilylation. These novel compounds have anthelmintic, insecticidal, ectoparasiticidal nema-, ticidal and acaricidal activity …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
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