SELECTIVE LONG-RANGE DEPT NMR TECHNIQUE AND ITS APPLICATION TO STRUCTURAL STUDY OF GLYCOSIDE

This paper reports a new NMR technique: selective long-range DEPT.The result obtained showed that the technique can be used to assign NMR signal of ¹³C,¹⁵N and ³¹P nuclei, and connect the spin systems separated by quaternary carbon orheteroatom. This paper deals mainly with applying the technique for determining theglycosidation position in aglycone moiety and sequence of sugar moiety in anatural glycoside.