InChI=1S/C24H49NO5Si4/c1-31(2,3)27-20-23(29-33(7,8)9)24(30-34(10,11)12)22(28-32(4,5)6)18-25-26-19-21-16-14-13-15-17-21/h13-18,22-24H,19-20H2,1-12H3