InChI=1S/C20H31BN4O5/c1-14(26)23-16(13-15-7-3-2-4-8-15)20(28)25-12-6-9-17(25)19(27)24-18(21(29)30)10-5-11-22/h2-4,7-8,16-18,29-30H,5-6,9-13,22H2,1H3,(H,23,26)(H,24,27)/t16-,17+,18+/m1/s1