Patent Document ID: 3965262
Application ID: 05465339
Patent Flag: 1

Claim One:
1. A method of enhancing learning or memory in a warm blooded animal which consists essentially of administering thereto a therapeutically effective amount to enhance the ability of the animal to learn tasks or to enhance the ability of the animal to memorize information of a substance selected from the group consisting of I. ethereally monosubstituted monosaccharides having the formula S.sub.1 --O--Y and therapeutically effective and pharmaceutically acceptable organic acid and inorganic acid salts thereof, and Ii. ethereal monosubstitutions of monosaccharide derivatives having the formula S.sub.2 --O--Y and therapeutically effective and pharmaceutically acceptable organic acid and inorganic acid salts thereof, Wherein: 1. S.sub.1 is the residue of a non-derivatized monosaccharide selected from the group consisting of pentoses, hexoses and heptoses, 2. S.sub.2 is the residue of a monosaccharide selected from the group consisting of pentoses, hexoses and heptoses which has been derivatized with a substance selected from the group consisting of (a) an aliphatic alcohol containing 1-18 carbon atoms to produce an acetal group at the site of an available hydroxyl residue, (b) an aldehyde containing 1-18 carbon atoms to produce an acetal group at the site of an available hydroxyl residue, (c) a ketone containing 1-18 carbon atoms to produce a ketal group at the site of an available hydroxyl residue, and (d) an organic acid residue containing 1-18 carbon atoms to produce an ester group at the site of an available hydroxyl residue, and 3. Y in each instance is selected from the group consisting of cyclic monovalent nitrogen containing organic radicals and residua and monovalent organic radicals and residua having the general formula ##EQU6## wherein R.sub.1 is a divalent organic radical having a linear carbon chain length of about 1-7 carbon atoms and R.sub.2 and R.sub.3 are selected from the group consisting of --H,--OH,--SH, halogen and monovalent organic radicals and residua having a linear carbon chain length of about 1-7 carbon atoms, and subjecting the said warm blooded animal to an environment wherein it is required to learn tasks or memorize information.