Biologically active carboxylic acid esters
First Claim
1. Compounds selected from the group consisting of compounds having formulas (I), (II) and (III):
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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.
1 Assignment
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Accused Products
Abstract
Biologically active carboxylic acid esters which promote antitumor or immune response are selected from the group consisting of compounds having formulas (I), (II) and (III):
XCH.sub.2 --CHX--CHX--C(═O)--O--Z (I)
CH.sub.3 --CO--CH.sub.2 --C(═O)--O--Z (II)
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--R'"'"', R represents a member selected from the group consisting of hydrogen and alkyl, and R'"'"' represents a member of 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, napthyl, furyl or thienyl, and (b) is phenyl, napthyl, 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.
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Citations
12 Claims
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1. Compounds selected from the group consisting of compounds having formulas (I), (II) and (III):
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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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Pivaloyloxymethyl butyrate.
Specification