假
发表于 2025-3-25 04:03:19
https://doi.org/10.1007/978-1-4684-2973-2organic chemistry; polymer; synthesis
易发怒
发表于 2025-3-25 08:22:47
Reactions Involving the Cleavage or Rearrangement of Heterocyclic Rings of Nucleic Acid Bases and tes this opening of the ring is an intermediate stage of the reaction and is followed by its closure by groups of atoms which differ from those in the original ring, or in other words, rearrangement takes place.
crumble
发表于 2025-3-25 14:44:04
Some Reactions of Minor Components of Nucleic Acids,ever, some of the minor components possess unusual chemical properties because their molecules contain functional groups which are not present in other nucleosides. These reactions, which go beyond the classification adopted in this book, will be examined briefly in this chapter.
最后一个
发表于 2025-3-25 18:21:30
Photochemistry of Nucleic Acids and their Components,olet region of the spectrum, on account of the aromatic nature of the heterocyclic purine and pyrimidine bases incorporated in them. The photochemistry of nucleic acids is concerned with the study of changes taking place in the molecules of nucleic acids or their components when irradiated with ultraviolet light.
dissent
发表于 2025-3-25 21:10:54
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不可磨灭
发表于 2025-3-26 03:06:26
Substitutions and Additions in the Heterocyclic Rings of Nucleic Acid Bases and their Derivatives,ine type, which possess a free electron pair, can also be included conventionally among addition reactions, as they are in this book. As a result of these reactions a new group appears in the heterocyclic ring without the removal of any groups or atoms previously present in the ring before the reaction.
想象
发表于 2025-3-26 05:17:00
Reactions of Exocyclic Substituents of Nucleic Acid Bases and their Derivatives,ngly with the π electron system of the heterocyclic ring, and consequently the properties of the corresponding components of the nucleic acids differ greatly from the properties of simple amines, amides, or thioamides.
调整校对
发表于 2025-3-26 10:03:52
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Tdd526
发表于 2025-3-26 14:21:17
Reactions of the Carbohydrate Residues of Nucleic Acids,erminal nucleotide of the chain has an unsubstituted 2′,3-cis-glycolgroup. In aminoacyl-tRNA, an amino-acid residue is linked to one of the hydroxyl groups of the 3′-terminal residue of the nucleotide by an ester bond.
突袭
发表于 2025-3-26 19:44:54
cids as a key to the understanding of the nature of life is reflected in the enormous number of published works on the subject, including many outstanding monographs and surveys. The pathways of syn thesis and metabolism of nucleic acid,s and the many and varied biological functions of these biopol