Synthesis of 3'-thioamido-modified 3'-deoxythymidine-5'-triphosphates and their use as chain terminators in Sanger-DNA sequencing. 2001

K Schwarzer, and C Wojczewski, and J W Engels
Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany.

The thioamide derivatives 3'-deoxy-5'-O-(4,4'-dimethoxytrityl)-3'-[(2-methyl-1-thioxo- propyl)amino]thymidine 1 and 3'-deoxy-5'-O-(4,4'-dimethoxytrityl)-3'-((6-([(9H-(fluo-ren-9- ylmethoxy)carbonyl]-amino)-1-thioxohexyl)amino) thymidine 2 were synthesized by regioselective thionation of their corresponding amides 7 and 8 with 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide (Lawesson's reagent). The thioamides were converted into the corresponding 5'-triphosphates 3 and 4. Compound 3 was chosen for DNA sequencing experiments and 4 was further labelled with fluorescein.

UI MeSH Term Description Entries
D005452 Fluoresceins A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays. Tetraiodofluorescein
D005456 Fluorescent Dyes Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. Flourescent Agent,Fluorescent Dye,Fluorescent Probe,Fluorescent Probes,Fluorochrome,Fluorochromes,Fluorogenic Substrates,Fluorescence Agents,Fluorescent Agents,Fluorogenic Substrate,Agents, Fluorescence,Agents, Fluorescent,Dyes, Fluorescent,Probes, Fluorescent,Substrates, Fluorogenic
D013854 Thioamides Organic compounds containing the radical -CSNH2. Thioamide
D013942 Thymine Nucleotides Phosphate esters of THYMIDINE in N-glycosidic linkage with ribose or deoxyribose, as occurs in nucleic acids. (From Dorland, 28th ed, p1154) Thymidine Phosphates,Nucleotides, Thymine,Phosphates, Thymidine
D017422 Sequence Analysis, DNA A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis. DNA Sequence Analysis,Sequence Determination, DNA,Analysis, DNA Sequence,DNA Sequence Determination,DNA Sequence Determinations,DNA Sequencing,Determination, DNA Sequence,Determinations, DNA Sequence,Sequence Determinations, DNA,Analyses, DNA Sequence,DNA Sequence Analyses,Sequence Analyses, DNA,Sequencing, DNA

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