for the following products
(Z)-3-(3-Chloropropyl)-7,8-diethyl-1H-benzo[d] azepin-2 (3H)-one | 3-(3-Chloropropyl)-7,8-dimethoxy-1H-3-benzazepin-2(3H)-one | 7,8-Dimethoxy-3-(3-chloropropyl)-1,3-dihydro-2H-3-benzazepin-2-one | 8-Demethyl Ivabradine Intermediate（Ivabradine Impurity 8） and 3-(3-Chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepin-2-one
