InChI=1S/C33H67NO4Si4/c1-32-20-19-25(36-40(6,7)8)21-24(32)15-16-26-27-17-18-28(29(23-35-39(3,4)5)34-38-42(12,13)14)33(27,2)22-30(31(26)32)37-41(9,10)11/h24-28,30-31H,15-23H2,1-14H3/t24?,25-,26?,27?,28+,30?,31?,32-,33-/m1/s1