Using O=Cc1cccn1-c1ccccc1Br, CCCC[PH](CCCC)(CCCC)CC1OCCO1 to produce Brc1ccccc1-n1cccc1C=CC1OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.