InChI=1S/C23H26ClNO5/c24-19-10-12-21(13-11-19)25(20-4-2-1-3-5-20)23(28)30-15-18-8-6-17(7-9-18)14-29-16-22(26)27/h1-5,10-13,17-18H,6-9,14-16H2,(H,26,27)/t17-,18-