Gabapentin EP Impurity D

Chemical Name: Gabapentin USP Related Compound D, (1-(3-Oxo-2-aza-spiro[4.5]dec-2-ylmethyl)-cyclohexyl)acetic acid

Synonym: (2S,3aR,7aS)-1-((1-(((2S,3R,4S,5S,6S)-6-carboxy-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)oxy)-1-oxo-4-phenylbutan-2-yl)-L-alanyl)octahydro-1H-indole-2-carboxylic acid