Using C1=COCCC1, N#Cc1c(Br)sc(-c2nnc[nH]2)c1Br to produce N#Cc1c(Br)sc(-c2ncn(C3CCCCO3)n2)c1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.