2-Amino-9-[(3R)-3-carboxy-4-hydroxybutyl]-1,9-dihydro-6H-purin-6-one
2-Amino-9-[(3R)-3-carboxy-4-hydroxybutyl]-1,9-dihydro-6H-purin-6-one ??
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2-Amino-9-[(3R)-3-carboxy-4-hydroxybutyl]-1,9-dihydro-6H-purin-6-one C??? ??, ??, ??
2-Amino-9-[(3R)-3-carboxy-4-hydroxybutyl]-1,9-dihydro-6H-purin-6-one ?? ?? ? ???
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2-Amino-9-[(3R)-3-carboxy-4-hydroxybutyl]-1,9-dihydro-6H-purin-6-one ?? ??
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