Patent · US Expired

Sulfuric acid esters of sugar alcohols

US5830920A · kind A · utility

30Cited by
6References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 26, 1996
Grant dateNov 3, 1998
Priority date
Expiry dateApr 26, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C305/10
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Compounds of the formula ##STR1## wherein n.sup.1 -n.sup.9 are each independently 0 or 1; PA1 m.sup.1 -m.sup.9 are each independently 0 or 1, but with the proviso that at least one of m.sup.1, m.sup.2 and m.sup.3, at least one of m.sup.4, m.sup.5 and m.sup.6 and, when present, at least one of m.sup.7, m.sup.8 and m.sup.9 is 1; and wherein PA1 X.sup.1 -X.sup.18 each independently is --O--, --CONR.sup.1,--NR.sup.1 CO-- or --NR.sup.1 --; PA1 R.sup.1 is hydrogen or lower alkyl; PA1 W is a benzene or s-triazine; PA1 Y.sup.1 -Y.sup.9 each independently is an aromatic ring systems; PA1 A.sup.1 -A.sup.3 each independently is a residue of a sugar alcohol devoid of the 1-hydroxy group or a derivative thereof, a residue of a sugar acid devoid of the 1-carboxy group or a derivative thereof or tris-(hydroxymethyl)-methyl; PA1 D is the di-residue of a sugar alcohol devoid of 2 hydroxy groups or a derivative thereof or the di-residue of a sugar dicarboxylic acid devoid of 2 carboxy group or a derivative thereof; PA1 Q.sup.1 -Q.sup.3 and Z.sup.1 -Z3 each independently are the di-residue of a sugar alcohol devoid of 2 hydroxy groups or a derivative thereof or the di-residue of a sugar dicarboxylic …

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.