Using C#CCCO, N#Cc1c(O)c2c(-c3ccc(Br)cc3)csc2[nH]c1=O to produce N#Cc1c(O)c2c(-c3ccc(C#CCCO)cc3)csc2[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.