Using CC(C)(C)c1ccc(N2CCC3(CCC(=O)CC3)C2=O)cc1, COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce COC=C1CCC2(CC1)CCN(c1ccc(C(C)(C)C)cc1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.