maackiain acetate

    Parameter     ppm  Hz

      D(A)         7.48
      D(B)         6.76
      D(C)         6.69
       J(A,B)          8.4
       J(A,C)          0.3
       J(B,C)          2.3
     
      D(D)         2.25
     
      D(E)         6.67
      D(F)         6.40
       J(E,F)          0.3
     
      D(G)         5.87
       J(G,G')         1.3
     
      D(H)         5.465
      D(I)         4.221
      D(J)         3.623
      D(K)         3.470
       J(H,I)          0.5
       J(H,J)         -0.7
       J(H,K)          7.4
       J(I,J)        -11.1
       J(I,K)          5.2
       J(J,K)         10.7
     
     PACHLER,K.G.R. & UNDERWOOD,W.G.E. TETRAHEDRON 23, 1817 (1967)
     J(A,C)<0.3HZ. J(E,F)<0.3HZ.