InChI=1/C23H22ClNO4/c1-12(2)14-4-6-15(7-5-14)20-19-21(27)16-11-17(24)13(3)10-18(16)29-22(19)23(28)25(20)8-9-26/h4-7,10-12,20,26H,8-9H2,1-3H3/t20-/m0/s1 26973A35C51D997C