2,3,4-trihydroxycyclopentanone
AssigneeTakara Shuzo Co., Ltd.
InventorsKaoru Kojima, Katsushige Ikai, Tatsuji Enoki, Nobuto Koyama, Ikunoshin Kato
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Abstract
2,3,4-trihydroxycyclopentanone represented by the following formula [I], its optically active substance or salt thereof. ##STR1##
Claims12
2,3,4-trihydroxycyclopentanone represented by the following formula [I], its optically active isomer or salt thereof. ##STR6##
A method of manufacturing 2,3,4-trihydroxycyclopentanone, its optically active isomer or salt thereof comprising the following steps:
- (A):
- a step wherein at least one substance selected from the following (a), (b) and (c) is heated to produce 2,3,4-trihydroxycyclopentanone;
- wherein
- (a):
- uronic acid or uronic acid derivative(s),
- (b):
- a saccharide compound which contains uronic acid and/or uronic acid derivative(s), and
- (c):
- a substance containing a saccharide compound which contains uronic acid and/or uronic acid derivative(s);
- (B):
- an optional step wherein 2,3,4-trihydroxycyclopentanone is isolated from the resulting heat-treated product.
A method of manufacturing 2,3,4-trihydroxycyclopentanone represented by the formula [I], its optically active isomer or salt thereof comprising a step where 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [II] is converted to 2,3,4-trihydroxycyclopentanone represented by the following formula [I] ##STR7##
Dependencies are inferred from the claim text.