Dihydroxyacetone phosphate (DHAP, 7) and bromoacetol phosphate (BAP, 6) were synthesized in four and five steps, respectively, starting from 1,3-dibromoacetone (2). The key step involves desymetrization and ketone protection of 2 to prepare alcohol 3. Phosphorylation of 3 followed by hydrogenolysis and then deprotection of the ketal function afforded 6. A solution of 7 was prepared after treatment of 6 with NaOH. This original route allows a short and convenient preparation of DHAP in large scale and high purity for application to the synthesis of sugar derivatives and preparation of BAP for triosephosphate isomerase inhibition.
Dihydroxyacetone phosphate, DHAP, in the crystalline state: monomeric and dimeric forms
作者:Katarzyna Ślepokura、Tadeusz Lis
DOI:10.1016/j.carres.2009.12.008
日期:2010.2
It was shown that dihydroxyacetone phosphate may exist in both monomeric DHAP (C(3)H(7)O(6)P) and dimeric DHAP-dimer (C(6)H(14)O(12)P(2)) form. Monomeric DHAP was obtained in the form of four crystalline salts: CaCl(DHAP) x 2.9H(2)O (7a), Ca(2)Cl(3)(DHAP) x 5H(2)O (7b), CaCl(DHAP) x 2H(2)O (7c), and CaBr(DHAP) x 5H(2)O (7d) by crystallization from aqueous solutions containing DHAP acid and CaCl(2)