2-O-glucopyranosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one
2-O-glucopyranosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one ??
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2-O-glucopyranosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one ?? ?? ? ???
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2-O-glucopyranosyl-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one ?? ??
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