Fragment A derivative (13) of nosiheptide, useful for the totalsynthesis, was obtained by stepwise introduction of the 2,5-bis(4-ethoxycarbonyl)-2-thiazolyl} groups and 6-(2-substituted)-4-thiazolyl} group into 3-hydroxy-5-cyanopyridine(3). The total yield was 7.6% via 14 steps.