4-[(7,8-dihydro-6H-cyclopenta[4,5]thieno[1,2-c]pyrimidin-1-ylhydrazo)methylidene]-2-methoxy-1-cyclohexa-2,5-dienone
4-[(7,8-dihydro-6h-cyclopenta[4,5]thieno[1,2-c]pyrimidin-1-ylhydrazo)methylidene]-2-methoxy-1-cyclohexa-2,5-dienone