InChI=1S/C22H27NO3S/c1-14(2)23(21(24)17-11-9-15(3)10-12-17)18-13-19(27-20(18)22(25)26)16-7-5-4-6-8-16/h4-8,13-15,17H,9-12H2,1-3H3,(H,25,26)/t15-,17-