Task: Question Answering
Input (English): Question: At 30 ° C, butylamine reacts with ethyl acrylate in KOH / EtOH and gives: 
 Options:  <1> N-Butylprop-2-enamide. <2> Prop-2-potassium enoate. <3> 3- (Butylamino) ethyl propanoate. <4> No new compound is formed. <5> Butene, ethanol and prop-2-enamide.
Output (English): 3