(1β,2α,4α,5β,6α)-3,8-Dioxatricyclo[3.2.1.02,4]octane-6-carbonitrile

    Parameter     ppm  Hz

      D(A)         3.46
      D(B)         3.74
       J(A,B)          3.2
     
      D(C)         4.65
      D(D)         4.70
      D(E)         2.94
      D(F)         2.26
      D(G)         1.81
       J(C,D)          0.00
       J(C,E)          0.00
       J(C,F)          1.7
       J(C,G)          0.0
       J(D,E)          4.9
       J(D,F)          0.00
       J(D,G)          0.00
       J(E,F)         10.6
       J(E,G)          4.4
       J(F,G)        -12.3
     
     MARFISI,C. ET AL. ORG.MAGN.RESON. 17, 239 (1981)