Cl.Cl.Cl.[Al].CCN(CC)c1ccc2c(c1)oc3cc(ccc3c2c4ccccc4C(O)=O)N(CC)CC.CCN(CC)c5ccc6c(c5)oc7cc(ccc7c6c8ccccc8C(O)=O)N(CC)CC.CCN(CC)c9ccc%10c(c9)oc%11cc(ccc%11c%10c%12ccccc%12C(O)=O)N(CC)CC