Using OC1C2CC3CC(C2)CC1(O)C3, C=C(C)C(=O)OCC(=O)O to produce C=C(C)C(=O)OCC(=O)OC12CC3CC(CC(O)(C3)C1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.