Synthetic studies in butenonyl C-glycosides: Preparation of polyfunctional alkanonyl glycosides and their enzyme inhibitory activity
作者:Surendra Singh Bisht、Seerat Fatima、Akhilesh K. Tamrakar、Neha Rahuja、Natasha Jaiswal、Arvind K. Srivastava、Rama P. Tripathi
DOI:10.1016/j.bmcl.2009.03.136
日期:2009.5
A simple synthesis of phenyl butenoyl C-glycosides has been achieved by Aldol condensation of peracetylated glycosyl acetones with aromatic aldehydes followed by deacetylation with methanolic NaOMe. The selected butenoyl C-glycosides on conjugate addition of diethyl malonate resulted in polyfunctional alkanonyl glycosides in good yields. The butenoyl C- and alkanoyl C- glycosides were evaluated for their alpha-glucosidase, glucose-6-phosphatse and glycogen phosphorylase enzyme inhibitory activities in vitro. Three of the synthesized (3, 5 and 9) showed potent enzyme inhibitory activities as compared to standard drugs. Compounds 3, 5 and 9 were evaluated in vivo too displaying significant activity as compared to standard drugs acarbose and metformin. (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis of C-cinnamoyl glycosides and their inhibitory activity against mammalian carbonic anhydrases
作者:Leonardo E. Riafrecha、Oscar M. Rodríguez、Daniela Vullo、Claudiu T. Supuran、Pedro A. Colinas
DOI:10.1016/j.bmc.2012.09.002
日期:2013.3
glycosides incorporating the phenol moiety has been prepared by reaction of glycosyl ketones with the appropriate benzaldehydes. Glycosides were tested for the inhibition of twelve mammalian isoforms of carbonicanhydrase. This is the first study in which α-CAs have been investigated for their interaction with C-glycosides, a novel carbohydrate scaffold in the design of carbonicanhydraseinhibitors. The