×

Biologically active carboxylic acid esters

  • US 5,200,553 A
  • Filed: 07/25/1988
  • Issued: 04/06/1993
  • Est. Priority Date: 07/30/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. Compounds selected from the group consisting of compounds having formulas (I), (II) and (III):

  • 
    
    space="preserve" listing-type="equation">XCH.sub.2 --CHX--CHX--C(═

    O)--O--Z (I),
    
    
    space="preserve" listing-type="equation">CH.sub.3 --CO--CH.sub.2 --C(═

    O)--O--Z (II) and
    
    
    space="preserve" listing-type="equation">CH.sub.3 --CH.sub.2 --CO--C(═

    O)--O--Z (III)wherein X is H, or one X only may be OH;

    Z is --CHR--O--(O═

    )C--R1, R represents a member selected from the group consisting of hydrogen and alkyl, and R'"'"' represents a member selected from the group consisting of alkyl, aminoalkyl, aralkyl, aryl, alkoxy, aralkoxy and aryloxy, in which aryl by itself, and aryl in aralkyl, aralkoxy and aryloxy, are each selected from the group consisting of sub-groups (a) and (b), wherein (a) is unsubstituted phenyl, naphthyl, furyl or thienyl, and (b) is phenyl, naphthyl, furyl or thienyl, each of which is substituted by at least one substituent selected from the group consisting of alkyl, alkoxy or halogen, provided that in (I) when X is H and R'"'"' is propyl, then R is alkyl which contains at least three carbon atoms.

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