Key Laboratory For Phytochemistry of Shaanxi Province, Dept. Chem. & Chem. Eng. ,Baoji University of Arts and Sciences, Baoji 721013, Shaanxi, China;
Key Laboratory For Phytochemistry of Shaanxi Province, Dept. Chem. & Chem. Eng. ,Baoji University of Arts and Sciences, Baoji 721013, Shaanxi, China;