InChI=1S/C14H17NO3/c1-18-14(17)13(10-6-3-2-4-7-10)11-8-5-9-12(16)15-11/h2-4,6-7,11,13H,5,8-9H2,1H3,(H,15,16)/t11-,13-/m1/s1