专利号:US-7329515-B2 优先权日:2003-04-21 标题 :Solid support for the synthesis of 3′-amino oligonucleotides 发明人:LEUCK MICHAEL; WOLTER ANDREAS 权利人:SIGMA ALDRICH CO 摘要:The present invention discloses novel methods and solid supports for the synthesis of 3′-amino oligonucleotides. The novel supports are based on an unsubstituted or ring-substituted hydroxymethylbenzoyl linker element wherein the hydroxymethyl group is esterified to a solid phase bound carboxylic acid and the carbonyl group is linked to an amino alcohol as an amide. Oligonucleotides are conveniently synthesized on the novel supports with no modifications in the standard phosphoramidite synthesis scheme. The ester function of the support is cleaved under the alkaline deprotection conditions for oligonucleotides to provide a free hydroxymethyl group that aids in the release of the 3′-amino oligonucleotide products with a free amino group through neighbor group participation. The free amino group of the oligonucleotides is available for further conjugation reactions to haptens, reporter groups, surfaces or other small molecules or biomolecules. The methods provided are particularly mild, do not require any modifications in standard protocols for the synthesis and deprotection of oligonucleotides, provide the 3′-amino oligonucleotides free of side products and do not introduce chiral centers to the oligonucleotides.
专利号:US-8362234-B2 优先权日:2006-03-24 标题 :Solid support reagents for synthesis 发明人:HATALA PAUL J; KURZ MARKUS 权利人:ARCHEMIX LLC; HATALA PAUL J; KURZ MARKUS 摘要:The present invention relates to a compound according to the formula: n nwherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , Y, Z, n, s, and t are as defined herein. These compounds are useful for methods of solid phase synthesis.
专利号:US-3651126-A 优先权日:1969-01-16 标 题 :Preparation of o-methylbenzoic acid and derivatives thereof 发明人:JUREWICZ ANTHONY T; FORNEY LE ROY S 权利人:MOBIL OIL CORP 摘要:PHTHALIDE AND SUBSTITUTED (4,5,6,7 POSITIONS) DERIVATIVES ARE CONVERTED TO O-METHYLBENZOIC ACIDS BY HYDROGENOLYSIS IN ALCOHOL, USING A PROTIC ACID CATALYST, OVER PALLADIUM METAL CATALYST, O-METHYLTEREPHTHALIC ACID IS PREPARED IN THIS WAY FROM 5-CARBOXYPHTHALIDE, AND IS USEFUL FOR MAKING NON-CRYSTALLINE POLYESTERS. O-METHYLBENZOIC ACIDS HAVE A VARIETY OF USES, SUCH AS THE PREPARATION OF ALKYL AND POLYESTER RESINS AND IN ORGANIC SYNTHESIS.
专利号:US-2004220397-A1 优先权日:2003-04-21 标题:Solid support for the synthesis of 3'-amino oligonucleotides