H NMR (500 MHz) and 13C NMR (125 MHz) spectra were measured on a Varian Unity Plus 500 NMR instrument in 0.5% DCl-CD3OD containing tetramethylsilane (TMS) as the internal standard
H NMR (500 MHz) and 13C NMR (125 MHz) spectra were measured on a Varian Unity Plus 500 NMR instrument in0.5% DCl-CD3OD containing tetramethylsilane (TMS) as the internal standard