InChI=1S/C14H14BNO5S/c17-12(8-11-5-2-6-22-11)16-13(15(20)21)9-3-1-4-10(7-9)14(18)19/h1-7,13,20-21H,8H2,(H,16,17)(H,18,19)/t13-/m0/s1