Bg. Davis et al., Tetrazoles of manno- and rhamno-pyranoses: Contrasting inhibition of mannosidases by [4.3.0] but of rhamnosidase by [3.3.0] bicyclic tetrazoles, TETRAHEDRON, 55(14), 1999, pp. 4489-4500
The synthesis of tetrazoles derived from D-manno and D- rhamnopyranose from
L-gulonolactone and of L-rhamnopyranose from D-gulonolactone is described.
These and other materials are assessed as inhibitors of glycosidases. The
[4.3.0] tetrazoles of D-manno- and D-rhamnopyranose are inhibitors of human
liver alpha-mannosidase. In contrast the D-furanose analogues show no inhi
bitory activity whilst the [3.3.0] L-rhamno furanotetrazole is a potent rha
mnosidase inhibitor, a potential inhibitor of mycobacterial cell wall biosy
nthesis and as such may pro, ide a strategy for the treatment of tuberculos
is. (C) 1999 Elsevier Science Ltd. All rights reserved.