4-(Allylcarbamoylmethyl)-5-oxo-1,3-dioxolane-4-acetic acid
4-(Allylcarbamoylmethyl)-5-oxo-1,3-dioxolane-4-acetic acid ??
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4-(Allylcarbamoylmethyl)-5-oxo-1,3-dioxolane-4-acetic acid ?? ?? ? ???
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4-(Allylcarbamoylmethyl)-5-oxo-1,3-dioxolane-4-acetic acid ?? ??
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