ミセラ・ブロンステッド酸によるDNAタグヘテロサイクルの合成
M Klika Škopić1, K Götte1, C Gramse1
1Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Straße 6 , 44227 Dortmund , Germany.
Journal of the American Chemical Society
|June 28, 2019
まとめ
DNAでコード化された図書館は 薬物検診のための 膨大な複合物のコレクションを提供しています ポリマーミセルはDNAの軽い化学反応を可能にし,制限を克服し,暗号化化学のアプリケーションを拡張します.
科学分野:
- 有機化学
- ポリマー化学
- 薬剤化学
背景:
- DNAエンコードライブラリ (DEL) は,分子生物学を大規模化合物合成とスクリーニングに活用します.
- DNAの反応性は化学的変異を制限し,特に強い酸のような厳しい条件下では,浄化による.
- 微小胞触媒は,DNAと適合する温和な水性条件下で化学処理を行うための有望な戦略です.
研究 の 目的:
- ポリマーベースのミセラー触媒の応用を DNA 暗号化化学で探求する.
- ポリマーミセル内の軽いDNA互換反応を用いて多様な化学的構造の合成を実証する.
- DEL合成に関連する酸化反応のためにミセラ触媒を適応させる.
主な方法:
- 水性ミセルを形成するために,硫酸の部分とアンフィフィリックブロックコポリマーの合成.
- これらのポリマーミセルをDNA結合アルデヒドのポヴァーロフとグローブケ・ブラックバーン・ビネイメ反応のナノリアクターとして利用する.
- DNA結合アミンから tert-butyloxycarbonyl (tBoc) を保護するグループを割くためにミセラーシステムを適用する.
- DNA結合アルコールの銅/バイピリジン/TEMPO媒介酸化のためのミセラーアプローチの適応.
主要な成果:
- ポリマーミセルはブロンステッド酸触媒を局所化し,穏やかな反応条件を可能にしました.
- 多様な置換テトラヒドロキノリンとアミノイミダゾピリジンは,それぞれポヴァーロフ反応とグローブケ・ブラックバーン・ビネイメ反応によって合成された.
- tBoc 保護群の効率的な分裂はミセラ条件下で達成された.
- ポリマーミセルシステムは,DNA結合アルコールの酸化に効果的に適応されました.
結論:
- ポリマーベースのミセラー触媒は,DNAでコードされた化学のための多用途で効果的な戦略です.
- このアプローチはDNAの反応性の制限を克服し,より広い範囲の化学変換を可能にします.
- 実証されたアプリケーションは,薬剤発見のための大規模なDNAエンコードされたライブラリを構築するポリマーミセルの幅広い可能性を示唆しています.
関連する概念動画
Brønsted-Lowry Acids and Bases
23.8K
In 1923, the Brønsted–Lowry definition of acids and bases was proposed by Johannes Brønsted and Thomas Lowry. According to this theory, a Brønsted acid is defined as a species that donates a proton in a chemical reaction and gets converted to its conjugate base. A Brønsted base is defined as a species that accepts a proton in a chemical reaction and gets converted into its conjugate acid. These transfers of protons are caused by the displacement of electrons in these reactions, which is...
23.8K
Lewis Acids and Bases
48.2K
In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
48.2K
Bronsted-Lowry Acids and Bases
103.9K
The acid-base reaction class has been studied for quite some time. In 1680, Robert Boyle reported traits of acid solutions that included their ability to dissolve many substances, to change the colors of certain natural dyes, and to lose these traits after coming in contact with alkali (base) solutions. In the eighteenth century, it was recognized that acids have a sour taste, react with limestone to liberate a gaseous substance (now known to be CO2), and interact with alkalis to form neutral...
103.9K
Weak Acid Solutions
42.3K
Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
42.3K
Basicity of Heterocyclic Aromatic Amines
6.9K
Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
6.9K
From DNA to Protein
22.2K
The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...
22.2K


