The Journal of antibiotics, 45(10), 1662-1668 (1992-10-01)
N-Substituted derivatives of siastatin B have been obtained by a chemical modification. Some derivatives showed potent inhibitory activities against Streptococcus sp. and Clostridium perfringens neuraminidases.
The Journal of antibiotics, 49(1), 54-60 (1996-01-01)
Novel heparanse inhibitors, A72363 A-1, A-2, and C, were isolated from the culture filtrate of Streptomyces nobilis SANK 60192 by column chromatography on various resinous adsorbents, followed by preparative anion exchange HPLC. Spectroscopic studies revealed that they are diastereomers of
A practical synthesis from siastatin B of (3S,4S,5R,6R)- 4,5-dihydroxy-6-(trifluoroacetamido)piperidine-3-carboxylic acid having antimetastatic activity in mice.
Journal of medicinal chemistry, 40(16), 2626-2633 (1997-08-01)
L-Iduronic acid-type 1-N-iminosugars, (3R,4S,5R,6R)- and (3R,4S,5S,6R)-6-acetamido-4-amino-5-hydroxypiperidine-3-carboxylic acid (6 and 7, respectively), (3R,4S,5R,6R)-6-acetamido-4- guanidino-5-hydroxypiperidine-3-carboxylic acid (8), and (3R,4S,5R,6R)-4-amino- and -guanidino-5-hydroxy-6-(trifluoroacetamido) piperidine-3-carboxylic acid (9 and 10, respectively), were synthesized from siastatin B (1), isolated from Streptomyces culture, by the intramolecular Michael addition
N-Alkyl-3-decarboxy-3-hydroxymethylsiastatin B, N-alkyl analogues of gem-diamine 1-N-iminosugars, is a new family of glycosidase inhibitors that have been synthesized from siastatin B isolated from Streptomyces culture. These compounds were evaluated as glycosidase inhibitors.
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