Ethyl 2-amino-6-chloro-4-(1-cyano-2-ethoxy-2-oxoethyl)-4H-chromene-3-carboxylate

for the following products 2-Amino-6-chloro-á-cyano-3-(ethoxycarbonyl)-4H-1-benzopyran-4-acetic acid ethyl ester and Ethyl 2-amino-6-chloro-4-(1-cyano-2-ethoxy-2-oxoethyl)-4H-chromene-3-carboxylate