The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2018
Filed:
Mar. 27, 2017
Agilent Technologies, Inc., Santa Clara, CA (US);
Joel Myerson, Berkeley, CA (US);
Siyuan Chen, San Mateo, CA (US);
Agilent Technologies, Inc., Santa Clara, CA (US);
Abstract
Aspects of the present disclosure include methods for double coupling a nucleoside phosphoramidite during synthesis of an oligonucleotide. The method can include coupling a free hydroxyl group of a nucleoside residue with a first sample of a protected nucleoside phosphoramidite via an internucleoside P(III) linkage, followed by exposure to an oxidizing agent prior to a second coupling step with a second sample of the protected nucleoside phosphoramidite, and further exposure to an oxidizing agent. The method finds use in synthesizing an oligonucleotide on a solid phase support, such as a planar surface. The double coupling method can be utilized at one or more nucleotide positions during oligonucleotide synthesis thereby reducing single base deletion rates. Oligonucleotide containing compositions synthesized according to the disclosed methods are also provided.