InChI=1/C18H17NO5/c1-11-8-15-16(22-7-6-21-15)9-13(11)19-18(20)17-12-4-2-3-5-14(12)23-10-24-17/h2-5,8-9,17H,6-7,10H2,1H3,(H,19,20)/t17-/m1/s1/f/h19H 1B66BD31487E223F