Semi-synthetic oleandomycins
CA 1069503 A · Owner: Pfizer Inc. · Inventors: Sciavolino, Frank C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a novel series of semi-synthetic oleandomycins having an exocyclic methylene or a cyclopropyl group at the C8 position. Processes for preparing the methylene compounds from the natural oleandomycins and the cyclopropyl compounds from the methylene compounds are also disclosed. The above oleandomycin compounds are effective in inhibiting the growth of microorganism especially Gram-positive, microorganism.
Read the whole patent
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.