(R)-2-(5-(4-(6-benzyl-4,5-dimethylpyridazin-3-yl)-2-ethylpiperazin-1-yl)pyrazin-2-yl)propan-2-ol
(R)-methyl 5-(4-(6-benzyl-4,5-dimethylpyridazin-3-yl)-2-ethylpiperazin-1-yl)pyrazine-2-carboxylate
(R)-3-benzyl-6-(3-ethylpiperazin-1-yl)-4,5-dimethylpyridazine
(R)-2-ethylpiperazine dihydrochloride