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

       ppm   Int.  Assign.

      166.55   135      1
      163.39   292      2
      160.91   202      3
      159.30   152      4
      153.49   393      5
      141.96   461      6
      134.22   404      7
      133.86   455      8
      129.12  1000      9
      128.78   904     10
      125.18   466     11 *
      124.86   489     12 *
      118.22   287     13
      116.81   500     14
       95.23   163     15
       20.99   478     16