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CompoundFormulaCalculated [M+H] + Observed [M+H] + DifferenceError, ppm 3C 35 H 27 N 7 O 9 690.1943690.1923-0.0020-2.898 4C 56 H 45 N 7 O 11 992.325992.3227-0.0023-2.318 5C 65 H 62 N 9 O 12 P1192.43281192.43650.00373.103 Table 1S. Summary of high-resolution mass spectra of nucleoside derivatives.
![CompoundFormulaCalculated [M+H] + Observed [M+H] + DifferenceError, ppm 3C 35 H 27 N 7 O C 56 H 45 N 7 O C 65 H 62 N 9 O 12 P Table 1S.](http://images.slideplayer.com./32/10064376/slides/slide_1.jpg "Summary of high-resolution mass spectra of nucleoside derivatives..")
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Figure 1S. 1 H-NMR spectrum of 2-(O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3- nitrobenzanthrone 3.
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Figure 2S. 13 C-NMR spectrum of 2-(O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3-nitrobenzanthrone 3.
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Figure 3S. High-resolution mass spectrum of 2-(O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3- nitrobenzanthrone 3.
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Figure 4S. 1 H-NMR spectrum of 2-(5’-O-dimethoxytriphenylmethyl-O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin- N 2 -yl)-3-nitrobenzanthrone 4.
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Figure 5S. 13C-NMR spectrum of 2-(5’-O-dimethoxytriphenylmethyl-O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin- N 2 -yl)-3-nitrobenzanthrone 4.
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Figure 6S. High-resolution mass spectrum of 2-(5’-O-dimethoxytriphenylmethyl-O 6 -2-(4- nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3-nitrobenzanthrone 4.
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Figure 7S. 1 H-NMR spectrum of 2-(3’-O-(Cyanoethoxydiisopropylaminophosphino)-5’-O-dimethoxytriphenylmethyl- O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3-nitrobenzanthrone 5.
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Figure 8S. High-resolution mass spectrum of 2-(3’-O-(Cyanoethoxydiisopropylaminophosphino)-5’-O- dimethoxytriphenylmethyl-O 6 -2-(4-nitrophenylethyl)-2’-deoxyguanosin-N 2 -yl)-3-nitrobenzanthrone 5.
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Figure 10S. ESI mass spectrum of the GTA TXC CGG CAT AC oligonucleotide (DMT-on) before NPE removal and nitro group reduction.
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Figure 9S. ESI mass spectrum of the ABA-modified 14-mer oligonucleotide GTA TXC CGG CAT AC, where X denotes (2’-deoxyguanosin-N 2 -yl)-3-aminobenzanthrone.
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