4-Amino-2-[p-(dimethylamino)phenyl]-5H-[1]benzopyrano[4,3-d]pyrimidin-5-one

       ppm   Int.  Assign.

      166.75   186      1
      163.20   286      2
      160.96   193      3
      159.04   181      4
      153.51   430      5 *
      153.10   339      6 *
      133.54   563      7
      130.50   971      8
      125.10   544      9 #
      124.67   482     10 #
      123.81   258     11
      118.46   317     12
      116.76   516     13
      111.31  1000     14
       94.16   212     15
     
     PEAK 16 IS CONTAINED IN SOLVENT DMSO.