InChI=1S/C37H54N4O2Si3/c1-15-27-24(6)30-18-34-22(4)23(5)35-20-32-28(16-2)25(7)31(39-32)19-37-29(17-3)26(8)36(21-33(27)38-30)41(37)46(40(34)35,42-44(9,10)11)43-45(12,13)14/h18-21,38-39H,15-17H2,1-14H3/b30-18-,31-19-,32-20-,33-21-,34-18-,35-20-,36-21-,37-19-