Prebiotic selection and assembly of proteinogenic amino acids and natural nucleotides from complex mixtures
作者:Saidul Islam、Dejan-Krešimir Bučar、Matthew W. Powner
DOI:10.1038/nchem.2703
日期:2017.6
permits ribonucleotide synthesis, even from complex sugar mixtures. Remarkably, aminal formation also overcomes the thermodynamically favoured isomerization of glyceraldehyde into dihydroxyacetone because only the aminal of glyceraldehyde separates from the equilibrating mixture. Finally, we show that aminal formation provides a novel pathway to amino acids that avoids the synthesis of the non-proteinogenic
Synthesis of Aldehydic Ribonucleotide and Amino Acid Precursors by Photoredox Chemistry
作者:Dougal J. Ritson、John D. Sutherland
DOI:10.1002/anie.201300321
日期:2013.5.27
Light work: UV irradiation of a system formed by adding copper(I) cyanide to an aqueous solution of glycolonitrile, sodium phosphate, and hydrogen sulfide efficiently generates aldehyde precursors to the building blocks of RNA and proteins.
Tertiary Amine Promoted Asymmetric Aldol Reaction of Aldehydes
作者:Bartosz Gut、Jacek Mlynarski
DOI:10.1002/ejoc.201500519
日期:2015.8
direct asymmetric self-aldol reactions of various α-oxyaldehydes catalyzed by tertiaryamines have been demonstrated. By using 10 mol-% of quinine catalyst, dimerization products have been prepared in high yields, with good anti-diastereocontrol, and up to 80 % ee. The presented enolate-mediated synthesis of protected tetrose sugars has never been accomplished before by chiral tertiaryamine organocatalysts
Thiophosphate photochemistry enables prebiotic access to sugars and terpenoid precursors
作者:Dougal J. Ritson、John D. Sutherland
DOI:10.1038/s41557-023-01251-9
日期:2023.10
the properties of thiophosphate as well as additional possible means for its formation on primitive Earth. We show that several reported prebiotic reactions, including the photoreduction of thioamides, carbonyl groups and cyanohydrins, can be markedly improved, and that tetroses and pentoses can be accessed from hydrogen cyanide through a Kiliani–Fischer-type process without progressing to higher sugars