Using CC(C)N=C=O, CCOCc1nc2c(N)nc3cccnc3c2n1CCCCNOC to produce CCOCc1nc2c(N)nc3cccnc3c2n1CCCCN(OC)C(=O)NC(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.