(4aS)-2,3,4,4a-Tetrahydro-4aβ-hydroxycyclopenta[b]pyran-7(7aβH)-one
(4aS)-2,3,4,4a-Tetrahydro-4aβ-hydroxycyclopenta[b]pyran-7(7aβH)-one ??
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(4aS)-2,3,4,4a-Tetrahydro-4aβ-hydroxycyclopenta[b]pyran-7(7aβH)-one ?? ?? ? ???
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(4aS)-2,3,4,4a-Tetrahydro-4aβ-hydroxycyclopenta[b]pyran-7(7aβH)-one ?? ??
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