Synonyms: 1,3-Propanediamine,N-[(3,4-dihydro-2H-1-benzopyran-2-yl)methyl]-N'-(1,4,5,6-tetrahydro-2-pyrimidinyl)-,(R)-; 1,3-Propanediamine,N-[[(2R)-3,4-dihydro-2H-1-benzopyran-2-yl]methyl]-N'-(1,4,5,6-tetrahydro-2-pyrimidinyl)-(9CI);2-[[3-[[(R)-2-Chromanylmethyl]amino]propyl]amino]-1,4,5,6-tetrahydropyrimidine;Alniditan; Alnitidan