Reaction of 4-Halo-3-hydroxyfuro[3,4-c]pyridin-1(3H)-ones with Morpholine and Thiomorpholine

4-Halo-3-hydroxyfuro[3,4-c]pyridin-1(3H)-ones reacted with morpholine and thiomorpholine in ethyl acetate to give in a few minutes 3-(morpholin-4-yl)- and 3-(thiomorpholin-4-yl)-substituted 4-halofuro­[3,4-c]pyridin-1(3H)-ones.