Water converted the ring-opened products into anthranilamides, which were cyclized on reaction with formaldehyde to 2, 3-dihydroquinazolin-4(1H)-ones.
Water
converted
the ring-opened products
into anthranilamides,
which
were cyclized
on reaction
with formaldehyde
to 2, 3-dihydroquinazolin-4(1H)-ones.