Using COC(=O)C(Cc1ccc2c(c1)OCO2)SC(C)C(=O)O to produce COC(=O)[C@H]1Cc2cc3c(cc2C(=O)[C@H](C)S1)OCO3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.