Synthesis of dibenzo-16-crown-5 compounds with pendant ester and ether groups

David A. Babb, Richard A. Bartsch, James J. Collier, Dhimant H. Desai, Sadik Elshani, Mi Ja Goo, Johnny L. Hallman, Gwi Suk Heo, Xiaowu Huang, Vincent J. Huber, Hong Sik Hwang, Russell J. Johnson, Yung Liu, Michael J. Pugia, Qiang Zhao