1: (S)-(2,2-dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-((2R)-3-chloro-2-hydroxypropoxy)phenyl)propanoate With potassium carbonate; potassium iodide in acetonitrile 2 h; Reflux; 2: 2-(morpholine-4-carboxamido)ethanamino oxalate in acetonitrile Reflux;