Siastatin B derivatives having a glycosidase inhibitory activity and processes for producing the same
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United States of America Patent
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Feb 8, 2005
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N/A
app pub date -
Jun 21, 2001
filing date -
Dec 25, 1998
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Expired
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Abstract
A compound of the formula (I): ##STR1## and a compound of the formula (V): ##STR2## as well as a compound of the formula (X): ##STR3## which are each a novel siastatin B derivative having a potent inhibitory activity against a glycosidase, are now synthesized by new processes. The compound of the formula (I), the compound of the formula (V) and the compound of the formula (X) have a potent enzyme-inhibitory activity to a glycosidase, which is particularly N-acetyl-galactosaminidase, galactosidase, glucosidase and mannosidase.
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