| n-((2-oxo-1-pyrrolidinyl)acetyl)-methanimidic aci 2-(4-nitrophenyl)hydrazid |
| n-((2-oxo-1-pyrrolidinyl)acetyl)methanimidic acid 2-(4-nitrophenyl)hydrazide |
| n-(p-nitrophenylamino)-n'-(pyrrolid-2-on-1-ylacetyl)formamidine |
| n-((2-oxo-1-pyrrolidinyl)acetyl)-methanimidic aci2-(4-nitrophenyl)hydrazide |
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