N,N'-bis(1,2,3,4-tetrahydroacridin-9-yl)hexane-1,6-diamine 1,2,3,4-tetrahydroacridin-9-yl-[6-(1,2,3,4-tetrahydroacridin-9-ylamino)hexyl]amine AP-518/40848412 STK126894