InChI=1/C16H17ClN4O2/c17-14-1-2-15(16(11-14)21(22)23)20-9-7-19(8-10-20)12-13-3-5-18-6-4-13/h1-6,11H,7-10,12H2/p+1/fC16H18ClN4O2/h19H/q+1 BC4BD9B088F5BE2C