Using O=C(C(=O)N1CCC2(CC1)Cc1ccccc1O2)c1c[nH]c2ccccc12 to produce c1ccc2c(c1)CC1(CCN(CCc3c[nH]c4ccccc34)CC1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.