Deoxyribose 5-phosphate aldolase as a catalyst in asymmetric aldol condensation
作者:Lihren Chen、David P. Dumas、Chi Huey Wong
DOI:10.1021/ja00028a050
日期:1992.1
This paper describes the substrate specificity and synthetic utility of deoxyribose-5-phosphate aldolase (DERA, EC 4.1.2.4). Eight donors and 20 acceptors have been tested as substrates. In addition to acetaldehyde, propanal, acetone, and fluoroacetone have been used to condense with a number of acceptor aldehydes. Thirteen aldol products have been prepared and characterized. A new stereogenic center with 3(S) configuration is formed when acetaldehyde, fluoroacetone, or acetone is used as a donor substrate. With propanal, two new stereogenic centers are formed with 2(R) and 3(S) configurations. The acceptor substrates have very little structural requirements. The 2-hydroxyaldehydes appear to react the fastest, and the D-isomers are better substrates than the L-isomers. The stereospecificity is absolute regardless of the chirality of 2-hydroxyaldehydes. The aldol reactions thus follow the Cram-Felkin mode of attack for D-substrates and anti-Cram-Felkin mode of attack for L-substrates.
Liu, Kevin K.-C.; Pederdon, Richard L.; Wong, Chi-Huey, Journal of the Chemical Society. Perkin transactions I, 1991, p. 2669 - 2673
作者:Liu, Kevin K.-C.、Pederdon, Richard L.、Wong, Chi-Huey
DOI:——
日期:——
An improved chemical and enzymatic synthesis of new fructose derivatives for import studies by the glucose transporter in parasites
作者:Patrick Page、Casimir Blonski、Jacques Périé
DOI:10.1016/0040-4020(95)01001-7
日期:1996.1
This paper presents the chemoenzymatic synthesis of D-fructose analogues substituted at position C6. These compounds are the unique products of rabbit muscle aldolase catalyzed aldolisation of D-glyceraldehyde analogues (obtained by stereospecific chemical synthesis) with DHAP, followed by a dephosphorylation step with acid phosphatase.