Nucleic Acids Research, 1977, Vol. 4, No. 4 1135-1158
© 1977
Articles |
Rapid synthesis of oligodeoxyribonucleotides: a new solid-phase method
MRC Laboratory of Molecular Biology Hills Road, Cambridge CB2 2QH, UK
Received March 18, 1977. A method is described that makes use of a new polyamide resin for the rapid synthesis of short oligodeoxyribonucleotides. The method is illustrated by the preparation of two heptadeoxyribonucleotides, d(pT6-C) and d(pC-A-G-T-G-A-T) using a phosphodiester approach. A further development involved use of phenyl isocyanate as an in situ drying agent, which obviated the need for solvent co-evaporation prior to the internucleotidic coupling steps. Improved fractionation of thymidyl oligonucleotides was obtained by use of a new microparticulate, silica-based anion-exchanger.