5-tert-Butyl 2-ethyl 6,7-dihydrofuro[3,2-c]pyridine-2,5(4H)-dicarboxylate
4,5,6,7-Tetrahydroisoxazolo[4,3-c]pyridine
1,3-Dibromo-6-chloro-2-methyl-1,5-dihydroimidazo[1,2-b]pyridazine
4-Methoxy-1-methyl-1H-pyrazolo[3,4-d]pyridazine
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