Fluorescein labelled phosphoramidites

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549223, 549225, 536 243, C07D31178, A61K 31335

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active

055832369

ABSTRACT:
Compounds useful to attach a fluorescein label to an oligonucleotide are disclosed. To create these compounds, oxygen groups on the fluorescein moiety are protected (e.g. with acyl groups). One then links a phosphoramidite to the fluorescein moiety via an amide or thiourea linkage to an active site on the fluorescein ring. The resulting compound can then be directly linked to an oligonucleotide as it is being formed in an automated synthesizer and then deprotected using the same deprotection conditions as are used to deprotect the oligonucleotides. Such compounds are, inter alia, useful to create labelled primers for DNA sequencing.

REFERENCES:
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