synthetic strategy to functionalize the indole nucleus with readily available 2-furylcarbinols was developed. It was found that the 3-(4-oxo-2-cyclopentenyl)indoles were obtained in moderate to good yields (up to 89%) through Piancatelli reaction catalyzed by ZnCl2, whereas employment of Brønsted acid TFA afforded directly coupled product 3-(2-furyl)indoles in moderate to good yields (up to 87%) via
Methods of forming an internucleotide bond are disclosed. Such methods find use in synthesis of polynucleotides. The method involves contacting a functionalized support with a precursor having an exocyclic amine triaryl methyl protecting group under conditions and for a time sufficient to result in internucleotide bond formation. The functionalized support includes a solid support, a triaryl methyl linker group, and a nucleoside moiety having a reactive site hydroxyl, the nucleoside moiety attached to the solid support via the triaryl methyl linker group.
Exocyclic amine triaryl methyl protecting groups in two step polynucleotide synthesis
申请人:Dellinger J. Douglas
公开号:US20050049411A1
公开(公告)日:2005-03-03
Precursors for use in the synthesis of polynucleotides and methods of using the precursors in synthesizing polynucleotides are disclosed. The precursors include a heterocyclic base having an exocyclic amine group and a substituted or unsubstituted triaryl methyl protecting group bound to the exocyclic amine group.
Exocyclic amine triaryl methyl protecting groups in two-step polynucleotide synthesis
申请人:Agilent Technologies, Inc.
公开号:US07193077B2
公开(公告)日:2007-03-20
Precursors for use in the synthesis of polynucleotides and methods of using the precursors in synthesizing polynucleotides are disclosed. The precursors include a heterocyclic base having an exocyclic amine group and a substituted or unsubstituted triaryl methyl protecting group bound to the exocyclic amine group.
Protecting groups for two-step polynucleotide synthesis
申请人:Agilent Technologies Inc
公开号:EP1512691A1
公开(公告)日:2005-03-09
Precursors for use in the synthesis of polynucleotides and methods of using the precursors in synthesizing polynucleotides include a heterocyclic base having an exocyclic amine group and a substituted or unsubstituted triaryl methyl protecting group bound to the exocyclic amine group.