A 1443 (OTTO) 1-Acetylpiperazine, 99% Cas 13889-98-0 - used in the synthesis of series of 7-alkoxyl substituted indolizinoquinoline-5,12-dione derivativesand 2-substituted-N-(naphth-1-ylmethyl)-pyrimidin-4-amines and 2-substituted-N-benzhydrylpyrimidin-4-amines.