Methods for removing dimethoxytrityl groups from oligonucleotides

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United States of America Patent

PATENT NO 6399765
SERIAL NO

09271220

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Abstract

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The present invention discloses improved methods for oligonucleotide synthesis and purification. In the methods of the invention, a half-life is determined for deprotection of the 5'-OH protecting group at the 5'-terminus of an oligonucleotide post-synthesis. The half-life is used to determine an optimal reaction time for removal of the 5'-OH protecting group. The methods of the invention are amenable to the large-scale synthesis and purification of oligonucleotides.

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Patent Owner(s)

Patent OwnerAddress
IONIS PHARMACEUTICALS INC2855 GAZELLE COURT CARLSBAD CA 90210

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krotz, Achim H San Diego, CA 8 27
McElroy, Bethany M San Marcos, CA 2 4
Scozzari, Anthony N Vista, CA 4 5

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