InChI=1/C21H26N4O3/c1-15-22-18-7-3-2-6-17(18)21(28)25(15)14-19(26)23-12-8-16(9-13-23)20(27)24-10-4-5-11-24/h2-3,6-7,16H,4-5,8-14H2,1H3 25ED14550FBE2D62