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A Prebiotic Synthesis of Pterins

机译：蝶呤的益生元合成

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The genesis of life on Earth is a hypothesis of evolutionary science that can be, at least partially, tested experimentally. The prebiotic synthesis of cofactors or coenzymes is a poorly explored issue, likely because their formation under plausible prebiotic conditions is not clear. In this sense, it has been proposed that the cofactors are molecular fossils of an early phase of life. In contrast, Eschenmoser and Loewenthal suggested a prebiotic hydrocyanic origin of cofactor building blocks. In the present paper, the formation of a set of pterins from cyanide polymerizations is demonstrated, showing that the main structure of some cofactors can be prebiotically formed. Indeed, it was observed that aqueous aerosols additionally increase the relative composition for pterins in the insoluble NH4CN polymers synthesized. The novel identification of pterins in NH4CN polymers, together with the previous detection of other important biomonomers, indicates that cyanide polymerizations were essential in the early state of prebiotic chemistry.
机译：地球生命的起源是进化科学的假设，可以至少部分地通过实验对其进行检验。辅助因子或辅酶的益生元合成是一个探索较差的问题，可能是因为它们在合理的益生元条件下的形成尚不清楚。从这个意义上说，已经提出辅因子是生命早期的分子化石。相反，Eschenmoser和Loewenthal提出了辅因子构建基的益生元氢氰酸起源。在本文中，证明了由氰化物聚合形成的一组蝶呤，表明某些辅因子的主要结构可以益生元形成。实际上，已经观察到水性气雾剂另外增加了所合成的不溶性NH 4 CN聚合物中蝶呤的相对组成。对NH4CN聚合物中蝶呤的新颖鉴定，以及先前对其他重要生物单体的检测，表明氰化物聚合在益生元化学的早期阶段至关重要。

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