001568: InChI=1.12Beta/C20H17N5O3/c1-27-13-7-3-11(4-8-13)15-16(12-5-9-14(28-2)10-6-12)23-18-17(22-15)19(26)25-20(21)24-18/h1-2H3,3-10H,(H3,21,23,24,25,26)