Using O=C(N[C@H](CNC[C@H](Cc1ccccc1)NC(=O)OCc1cncs1)Cc1ccccc1)OCc1cncs1, CC(C)C=O to produce CC(C)CN(C[C@H](Cc1ccccc1)NC(=O)OCc1cncs1)C[C@H](Cc1ccccc1)NC(=O)OCc1cncs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.