An improved synthesis of phosphonomethyl analogues of glyceraldehyde- 3-phosphate and dihydroxy-acetone phosphate
摘要:
Compounds 1 and 2, phosphonate analogues of dihydroxy-acetone phosphate (DHAP) and glyceraldehyde-3-phosphate (GAP) respectively, are easily and quantitatively obtained from diethyl-4,4-diethoxy-3-hydroxybutyl-1-phosphonate 3. Depending upon the acidic conditions utilised for the deprotection of the phosphonate and carbonyl groups, the aldol/ketol rearrangement allows the synthesis of either compound.
Monofluorophosphonates as phosphate mimics in bioorganic chemistry: a comparative study of CH2-, CHF- and CF2-phosphonate analogues of sn-glycerol-3-phosphate as substrates for sn-glycerol-3-phosphate dehydrogenase
作者:Jens Nieschalk、David O'Hagan
DOI:10.1039/c39950000719
日期:——
The synthesis of the cyclohexylammonium salts of 3-(S),4-dihydroxy-1(R,S)-fluorobutylphosphonic acid 3 and 1,1-difluoro-3-(S),4-dihydroxybutylphosphonic acid 4 is reported; 3 is a better substrate for NADH linked sn-glycerol-3-phosphate dehydrogenase than the difluoromethylenephosphonate 4; a comparative study of the CH2-, CHF and CF2- phosphonate analogues of sn-glycerol-3-phosphate is reported.
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.
Isosteres of natural phosphates. 2. Synthesis of the monosodium salt of 4-hydroxy-3-oxobutyl-l-phosphonic acid an isostere of dihydroxyacetone phosphate
作者:Stephen L. Goldstein、Diza Braksmayer、Burton E. Tropp、Robert Engel