InChI=1S/C23H33NO3Si/c1-22(2,3)28(5,6)27-18-10-7-14-13-16-15-8-9-17(25)21-23(15,11-12-24(16)4)19(14)20(18)26-21/h7,10,15-16,21H,8-9,11-13H2,1-6H3