Efficient enzymatic synthesis of l -rhamnulose and l -fuculose
摘要:
L-Rhamnulose (6-deoxy-L-arabino-2-hexulose) and L-fuculose (6-deoxy-L-lyxo-2-hexulose) were prepared from L-rhamnose and L-fucose by a two-step strategy. In the first reaction step, isomerization of L-rhamnose to L-rhamnulose, or L-fucose to L-fuculose was combined with a targeted phosphorylation reaction catalyzed by L-rhamnulose kinase (RhaB). The by-products (ATP and ADP) were selectively removed by silver nitrate precipitation method. In the second step, the phosphate group was hydrolyzed to produce L-rhamnulose or L-fuculose with purity exceeding 99% in more than 80% yield (gram scale). (C) 2015 Elsevier Ltd. All rights reserved.
Efficient enzymatic synthesis of l -rhamnulose and l -fuculose
摘要:
L-Rhamnulose (6-deoxy-L-arabino-2-hexulose) and L-fuculose (6-deoxy-L-lyxo-2-hexulose) were prepared from L-rhamnose and L-fucose by a two-step strategy. In the first reaction step, isomerization of L-rhamnose to L-rhamnulose, or L-fucose to L-fuculose was combined with a targeted phosphorylation reaction catalyzed by L-rhamnulose kinase (RhaB). The by-products (ATP and ADP) were selectively removed by silver nitrate precipitation method. In the second step, the phosphate group was hydrolyzed to produce L-rhamnulose or L-fuculose with purity exceeding 99% in more than 80% yield (gram scale). (C) 2015 Elsevier Ltd. All rights reserved.
Borate as a Phosphate Ester Mimic in Aldolase-Catalyzed Reactions: Practical Synthesis ofL-Fructose andL-Iminocyclitols
作者:Masakazu Sugiyama、Zhangyong Hong、Lisa J. Whalen、William A. Greenberg、Chi-Huey Wong
DOI:10.1002/adsc.200600356
日期:2006.12
Dihydroxyacetone phosphate (DHAP)-dependent aldolases have been widely used for the organicsynthesis of unnatural sugars or derivatives. The practicality of using DHAP-dependent aldolases is limited by their strict substrate specificity and the high cost and instability of DHAP. Here we report that the DHAP-dependent aldolase L-rhamnulose 1-phosphate aldolase (RhaD) accepts dihydroxyacetone (DHA)
作者:Fessner, Wolf-Dieter、Sinerius, Gudrun、Schneider, Achim、Dreyer, Matthias、Schulz, Georg E.、et al.
DOI:——
日期:——
IMPERIALI, BARBARA;ZIMMERMAN, JANET WARREN, TETRAHEDRON LETT., 31,(1990) N5, C. 6485-6488
作者:IMPERIALI, BARBARA、ZIMMERMAN, JANET WARREN
DOI:——
日期:——
Efficient enzymatic synthesis of l -rhamnulose and l -fuculose
作者:Liuqing Wen、Lanlan Zang、Kenneth Huang、Shanshan Li、Runling Wang、Peng George Wang
DOI:10.1016/j.bmcl.2015.12.051
日期:2016.2
L-Rhamnulose (6-deoxy-L-arabino-2-hexulose) and L-fuculose (6-deoxy-L-lyxo-2-hexulose) were prepared from L-rhamnose and L-fucose by a two-step strategy. In the first reaction step, isomerization of L-rhamnose to L-rhamnulose, or L-fucose to L-fuculose was combined with a targeted phosphorylation reaction catalyzed by L-rhamnulose kinase (RhaB). The by-products (ATP and ADP) were selectively removed by silver nitrate precipitation method. In the second step, the phosphate group was hydrolyzed to produce L-rhamnulose or L-fuculose with purity exceeding 99% in more than 80% yield (gram scale). (C) 2015 Elsevier Ltd. All rights reserved.