Description
Castanospermine is an inhibitor of all forms of α- and β-glucosidases, especially glucosidase l. It inhibits lysosomal and neutral α-glucosidases with Ki values of 0.1 and 10 μM, respectively. It also inhibits lysosomal and cytosolic β-glucosidases with Ki values of 7 and 40 μM, respectively. It inhibits HIV syncytium formation and replication. It catalyzes the cleavage of individual glucosyl residues from various glycoconjugates, including complex carbohydrates and glycoproteins. It is effective both in vitro and in vivo. It blocks N-linked glycosylation during post-translational modification of proteins, affecting protein trafficking and cell functions, including angiogenesis. It also interferes with viral replication and infection. It is a potent and specific inhibitor of mammalian and plant α-and β-D-glucosidases in vitro.
Synonyms
1,6,7,8-Tetrahydroxyoctahydroindolizine
IUPAC Name
(1S,6S,7R,8R,8aR)-1,2,3,5,6,7,8,8a-octahydroindolizine-1,6,7,8-tetrol
Molecular Formula
C8H15NO4
Canonical SMILES
C1CN2CC(C(C(C2C1O)O)O)O
InChI
InChI=1S/C8H15NO4/c10-4-1-2-9-3-5(11)7(12)8(13)6(4)9/h4-8,10-13H,1-3H2/t4-,5-,6+,7+,8+/m0/s1
InChIKey
JDVVGAQPNNXQDW-TVNFTVLESA-N
Boiling Point
421.9±45.0°C
Melting Point
202-208°C (dec.)
Solubility
Soluble in DMSO, Water
Appearance
White to Yellow Powder
Application
Castanospermine inhibits HIV syncytium formation and replication. It catalyzes the cleavage of individual glucosyl residues from various glycoconjugates, including complex carbohydrates and glycoproteins. It blocks N-linked glycosylation during post-translational modification of proteins, affecting protein trafficking and cell functions, including angiogenesis. It also interferes with viral replication and infection.
Shelf Life
2 month in rt, long time
Alpha
D25 +79.7° (c = 0.93 in water)
Risk Statements
20/21/22-36/37/38
Stability
Stable for 2 years from date of purchase as supplied. Solutions in distilled water may be stored at -20°C for up to 3 months.
Uses
Castanospermine, is used as a glycosidase inhibitor and antiinflammatory agent. Castanospermine is used to inhibit syncytium formation between HIV-infected and CD4-expressing cells and may also interfere with infectivity. It has also been demonstrated that this agent inhibits inflammation at the level of leukocyte extravasation in rat models of experimental adjuvant-induced arthritis and autoimmune encephalomyelitis.
Water Solubility
Soluble in water