InChI=1S/C21H33BN4O5/c1-15(27)24-17(14-16-8-3-2-4-9-16)21(29)26-13-7-10-18(26)20(28)25-19(22(30)31)11-5-6-12-23/h2-4,8-9,17-19,30-31H,5-7,10-14,23H2,1H3,(H,24,27)(H,25,28)/t17-,18+,19+/m1/s1