[R,(-)]-2-Ethyl-2-hydroxy-5,8-dimethoxytetralin-1-one
[R,(-)]-2-Ethyl-2-hydroxy-5,8-dimethoxytetralin-1-one ??
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[R,(-)]-2-Ethyl-2-hydroxy-5,8-dimethoxytetralin-1-one ?? ?? ? ???
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[R,(-)]-2-Ethyl-2-hydroxy-5,8-dimethoxytetralin-1-one ?? ??
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