Patent ID: 6087401
Filing Date: 2000-07-11
Classification: A61K,A61P,A61Q,C07H

Abstract:
A method of manufacturing 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [1] ##STR3## which comprises heating at least one substance selected from the following (a), (b) and (c) to produce the 4,5-dihydroxy-2-cyclopenten-1-one,(a): uronic acid or at least one uronic acid derivative selected from the group consisting of uronic acid salt, uronic acid lactone, a salt of uronic acid lactone, uronic acid ester, a salt of uronic acid ester, uronic acid amide and a salt of uronic acid amide;(b): a saccharide compound which contains uronic acid and/or said at least one uronic acid derivative; and(c): a substance containing a saccharide compound which contains uronic acid and/or said at least one uronic acid derivative.