A solution of 2,6-dapy (0.024 g, 0.2219 mmol) in EtOH (5 ml)
was added to a suspension of 1 (0.065 g, 0.1109 mmol) in EtOH
(10 ml). The mixture was stirred for 4 h and the yellow solid
formed was filtered and dried under vacuum. This was recrystallized
from MeOH and benzene to give yellow microcrystalline solid
(0.071 g, 88%). Anal. Calc. for