Using CC(C)(C)OC(=O)N1CCCC(CCn2c(Sc3cc4c(cc3Br)OCO4)nc3c(N)ncnc32)C1 to produce Nc1ncnc2c1nc(Sc1cc3c(cc1Br)OCO3)n2CCC1CCCNC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.