Methyl 2,3-dideoxy-3-fluoro-5-O-pivaloyl-a-D-ribofuranoside
Methyl 2,3-dideoxy-3-fluoro-5-O-pivaloyl-a-D-ribofuranoside ??
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Methyl 2,3-dideoxy-3-fluoro-5-O-pivaloyl-a-D-ribofuranoside ?? ?? ? ???
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Methyl 2,3-dideoxy-3-fluoro-5-O-pivaloyl-a-D-ribofuranoside ?? ??
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