3-amino-4-ethyl-1-hydroxypyrrolidin-2-one;3-amino-4-ethyl-1-hydroxy-pyrrolidin-2-one;3-amino-4-ethyl-1-hydroxy-2-pyrrolidinone;3-amino-4-ethyl-1-hydroxy-2-pyrrolidone
3-amino-4-ethyl-1-hydroxypyrrolidin-2-one