The invention relates to substituted benzofuran-2-carboxamides of the formula I
##STR00002## in which D is H, OH, OA, CN, Hal, COR.sup.3 or CH.sub.2R.sup.3, R.sup.1 is amino, hydroxyl, cyano, --C(.dbd.NR.sup.4)--N(R.sup.4).sub.2, Het, unsubstituted or A-substituted cycloalkyl having from 3 to 10