Using O=C(OCc1ccccc1)N1CCN(C[C@H]2CCCN(C3CC3)C2)CC1 to produce C1C[C@H](CN2CCNCC2)CN(C2CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.