With increasing CUR or PTX feed, the solubilized drug amount increased until it reached the maximum LC (Fig. a-e and Fig. ). At the same CUR or PTX feed, A-p R EtEtOx-A, A-p S EtEtOx-A, A-p RS EtEtOx-A and physical mixtures M A-pEtEtOx-A solubilized similar amount of CUR (Fig. ) or PTX (Fig. ), respectively.