Oligonucleotide polymeric support system with an oxidation cleavable link
First Claim
1. A process comprising the steps of:
- (a) providing a compound consisting essentially of a polymeric support and a primer, said compound having the structure;
##STR1## wherein S is a solid support, is a spacer of 1 to 50 atoms which is not cleaved under acidic or basic deprotecting conditions of oligonucleotide synthesis and is attached to said polymeric support, R8 is a protecting group on an oxidizable substituent and R7 is a protecting group for --OH;
(b) synthesizing an oligonucleotide having base-labile protective groups on the nucleotides onto the O of OR7 ; and
(c) removing the protecting groups with a base.
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Accused Products
Abstract
A versatile polymeric support system for the synthesis of oligonucleotides is provided featuring a universal primer which allows chain elongation, in either the 3'"'"' or 5'"'"' direction, with any currently available DNA or RNA synthesis method, by a process which utilizes oxidatively cleaved primers to facilitate chain elongation and release. The support system is capable of withstanding mildly basic and acidic reaction conditions, while still permitting a convenient and quantitative release, either before or after removal of protecting groups from reactive groups, of synthesized oligonucleotides from a single polymeric support. Removal of the protecting groups before cleavage of the oligomer from the support permits the use of the immobilized oligomer as an affinity hybridization support for both isolating and detecting complementary polynucleic acids.
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Citations
8 Claims
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1. A process comprising the steps of:
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(a) providing a compound consisting essentially of a polymeric support and a primer, said compound having the structure;
##STR1## wherein S is a solid support, is a spacer of 1 to 50 atoms which is not cleaved under acidic or basic deprotecting conditions of oligonucleotide synthesis and is attached to said polymeric support, R8 is a protecting group on an oxidizable substituent and R7 is a protecting group for --OH;(b) synthesizing an oligonucleotide having base-labile protective groups on the nucleotides onto the O of OR7 ; and (c) removing the protecting groups with a base. - View Dependent Claims (5, 6, 7, 8)
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2. A process comprising the steps of:
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(a) providing a compound consisting essentially of a polymeric support and a primer, said compound having the structure;
##STR2## wherein S is a solid support, is a spacer of 1 to 50 atoms which is not cleaved under acidic or basic deprotecting conditions of oligonucleotide synthesis and is attached to said polymeric support, R8 is a protecting group on an oxidizable substituent, R7 is a protecting group for --OH, and R9 are independently selected from the group consisting of H, alkyl, alkoxy and aryl; and(b) synthesizing an oligonucleotide having base-labile protective groups on the nucleotides onto the O of OR7 ; and (c) removing the protecting groups with a base.
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3. A process comprising the steps of:
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(a) providing a compound consisting essentially of a polymeric support and a primer, said compound having the structure;
##STR3## wherein S is a solid support, is a spacer of 1 to 50 atoms which is not cleaved under acidic or basic deprotecting conditions of oligonucleotide synthesis and is attached to said polymeric support, R8 is a protecting group on an oxidizable substituent, R7 is a protecting group for --OH, and is a portion of the cyclic primer that does not directly participate in the cleavage reaction;(b) synthesizing an oligonucleotide having base-labile protective groups on the nucleotides onto the O of OR7 ; and (c) removing the protecting groups with a base.
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4. A process comprising the steps of:
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(a) providing a compound consisting essentially of a polymeric support and a primer, said compound having the structure;
##STR4## wherein S is a solid support, is a spacer of 1 to 50 atoms which is not cleaved under acidic or basic deprotecting conditions of oligonucleotide synthesis and is attached to said polymeric support, R8 is a protecting group on an oxidizable substituent, R7 is a protecting group for --OH, R9 are independently selected from the group consisting of H, alkyl, alkoxy and aryl and is the portion of the cyclic primer that does not directly participate in the cleavage reaction;(b) synthesizing an oligonucleotide having base-labile protective groups on the nucleotides onto the O of OR7 ; and (c) removing the protecting groups with a base.
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Specification