Deprotection of synthetic oligonucleotides using...

C - Chemistry – Metallurgy – 07 – H

Patent

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C07H 21/00 (2006.01) C07H 1/06 (2006.01)

Patent

CA 2411356

The present invention relates to a method of preventing modification of a synthetic oligonucleotide or oligonucleotide analog during removal of at least one .beta.-cyanoethyl protecting group from the oligonucleotide or oligonucleotide analog. The method involves contacting the oligonucleotide or oligonucleotide analog with a basic solution having at least one acrylonitrile scavenger, such as t-butylamine, at a sufficient temperature and for a sufficient period of time to remove at least one .beta.-cyanoethyl protecting group. The present invention also relates to a method of producing a synthetic oligonucleotide or oligonucleotide analog.

La présente invention concerne un procédé permettant d'éviter la modification d'un oligonucléotide synthétique ou d'un analogue d'oligonucléotide pendant l'extraction d'au moins un groupe protecteur de .beta.-cyanoéthyle à partir de cet oligonucléotide ou de cet analogue d'oligonucléotide. Ce procédé consiste à mettre cet oligonucléotide ou cet analogue d'oligonucléotide en contact avec une solution basique comprenant au moins un épurateur d'acrylonitrile, tel qu'une t-butylamine, à une température suffisamment élevée et pendant une durée suffisante pour extraire au moins un groupe protecteur de .beta.-cyanoéthyle. La présente invention concerne également un procédé de production d'un oligonucléotide synthétique ou d'un analogue d'oligonucléotide.

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