"2-((1E,3E)-4-(2-fluoro-6-(methylamino)pyridin-3-yl)buta-1,3-dien-"
"2-((1E,3E)-4-(2-fluoro-6-(methylamino)pyridin-3-yl)buta-1,3-dien-"
"2-((1E,3E)-4-(2-fluoro-6-(methylamino)pyridin-3-yl)buta-1,3-dien-"
"2-((1E,3E)-4-(2-fluoro-6-(methylamino)pyridin-3-yl)buta-1,3-dien-"