 
    Assign.     Shift(ppm)
      B             3.219
      C             2.270
      D             2.175
      E             2.002
      F             1.91
      G             1.434
      J             1.38
      K             1.34
      L             1.26
     
     ASSIGNED BY H-H COSY.
     J(C,L)=J(C,G)=12.2HZ
     J(C,F)=J(C,D)=3.4HZ
     J(B,K)=J(B,G)=11.6HZ
     J(B,E)=J(B,D)=4.0HZ
     J(D,G)=-12.1HZ
     THE SOLVENT SIGNAL REMOVED.
  
Spectral Code: 1H NMR : 400 MHz in D2O