Starting from achiral materials two stereoisomeric phosphonylated dihydroxypyrrolidines containing four stereogenic centers were synthesized enantioselectively employing a combination of enzymatic and transition-metal-mediated methods. Both compounds contain features of the transition state of the enzyme-catalyzed fucosyl transfer reaction and represent building blocks of potential inhibitors against this class of enzymes. (C) 2001 Elsevier Science Ltd. All rights reserved.
Chemo-enzymatic synthesis of five-membered azasugars as inhibitors of fucosidase and fucosyltransferase: An issue regarding the stereochemistry discrimination at transition states
作者:Wang Yi-Fong、Dumas P. David、Chi-Huey Wong
DOI:10.1016/0040-4039(93)85087-d
日期:1993.1
Three new 5-membered aza sugars which inhibit bovine α-fucosidase with Ki values in the μM range have been prepared based on aldolase reactions.