InChI=1S/C17H22O5/c1-9-6-17(22-15(9)19)7-16(8-20-17)12-4-13(16)10(2)14(5-12)21-11(3)18/h9,12-14H,2,4-8H2,1,3H3/t9-,12+,13?,14-,16-,17+/m1/s1