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![Oseltamivir impurity 3; ethyl (1R,5R,6R)-5-(1-ethylpropoxy)-7-oxazolo[4.1.0]hept-3-ene-3-carboxylate](/upload/image/thumb/1_300_300_20250318202503181048.jpg)
Oseltamivir impurity 3; ethyl (1R,5R,6R)-5-(1-ethylpropoxy)-7-oxazolo[4.1.0]hept-3-ene-3-carboxylate
