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. 2023 Oct 31;14:6856. doi: 10.1038/s41467-023-42639-y

Fig. 1. Chemical modification of oligonucleotides.

Fig. 1

A Applications of P–C backbones in oligonucleotide pharmaceuticals. MP methylphosphonate. MOP Methoxypropylphosphonate. B Carbocation generation via a light-driven radical-polar crossover mechanism. SET, single electron transfer. C Synthesis of oligonucleotides bearing tertiary alkylphosphonate backbones (this work).