Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07H
SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
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17/00
Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
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C07H17/04
Heterocyclic radicals containing only oxygen as ring hetero atoms
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