O-selective condensation using P-N bond cleavage in RNA synthesis without base protection
Akihiro Ohkubo1, Yasukazu Kuwayama, Tomomi Kudo
1Department of Life Science, Tokyo Institute of Technology, Nagatsuta, Midoriku, Yokohama 226-8501, Japan.
Abstract:
In RNA synthesis without base protection, a new method for O-selective condensation with more than 99% selectivity was developed by 6-nitro-HOBt-mediated cleavage of undesired P(III)-N bonds on nucleobase moieties. Moreover, we for the first time succeeded in synthesizing oligoRNAs without base protection.
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