Synthesis and biological activity of the (−)-(2R,3S,4S)-3-azido-4-methoxy-2-(1′S-methoxy-2′-azido)ethyl-thiolane
摘要:
A stereospecific ring contraction reaction, promoted by NaN3, was detected starting from a thiepane derivative obtained from D-sorbitol, an inexpensive alcohol sugar. The major polyfunctionalized thiolane derivative obtained was investigated as a potential glycosidase inhibitor. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
Synthesis and glycosidase inhibition of new enantiopure 2,3-diamino conduritols
摘要:
A new 2,3-diamino conduritol, isoster of conduritol F, was obtained starting from D-sorbitol. In the synthetic sequence an unprecedented transannular cyclization led, as a side product, to a bicyclic compound bearing a cyclopropyl ring. The synthesis of the completely deprotected 2,3-diamino conduritol, isoster of conduritol B, was devised via the intermediate O-benzylation of the OH groups. The O-methylated and deprotected 2,3-diamino conduritols were evaluated as inhibitors of alpha- and beta -glucosidase. (C) 2001 Elsevier Science Ltd. All rights reserved.