×

4"-Keto-and 4"-amino-4"-deoxy avermectin compounds and substituted amino derivatives thereof

  • US 4,427,663 A
  • Filed: 03/16/1982
  • Issued: 01/24/1984
  • Est. Priority Date: 03/16/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A compound having the formula:

  • ##STR7## wherein R1 is ═

    O, --NR5 R6 or ##STR8## wherein R1 '"'"' is ═

    O or --NR5 R6 ;

    R5 and R6 are independently hydrogen, loweralkyl, loweralkanoyl, substituted benzenesulfonyl wherein the substituent is halogen;

    or loweralkyl sulfonyl;

    R2 is hydrogen or hydroxy;

    R3 is sec-butyl or iso-propyl;

    R4 is hydroxy or methoxy;

    and the broken line indicates a single or a double bond at the 22,23-position provided that R2 can only be hydroxy when the broken line indicates a single bond.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×