115091-90-2 4-(1,3-Benzodioxol-5-yl)-2,9-dimethoxy-5H-(1)benzothiopyrano(4,3-b)pyridine-3-carbonitrile 5H-(1)Benzothiopyrano(4,3-b)pyridine-3-carbonitrile, 4-(1,3-benzodioxol-5-yl)-2,9-dimethoxy-