Using COC(CC=O)(CCC(=O)CCCC1CCC(=O)O1)OC, COCCOC to produce CCCCCC(=O)/C=C/CC(CCC(=O)CCCC1CCC(=O)O1)(OC)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.