2-(2,6-Dioxopiperidin-3-yl)-4-(2-(2-(2-(prop-2-yn-1-yloxy)ethoxy)ethoxy)ethoxy)isoindoline-1,3-dione

2-(2,6-Dioxopiperidin-3-yl)-4-(2-(2-(2-(prop-2-yn-1-yloxy)ethoxy)ethoxy)ethoxy)isoindoline-1,3-dione,