2-(Furfurylamino)butyric acid 4-pentenyl ester
2-(Furfurylamino)butyric acid 4-pentenyl ester ??
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2-(Furfurylamino)butyric acid 4-pentenyl ester ?? ?? ? ???
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2-(Furfurylamino)butyric acid 4-pentenyl ester ?? ??
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