InChI=1/C18H23NO4/c1-13(10-14-2-4-15(20)5-3-14)19-11-17(22)12-23-18-8-6-16(21)7-9-18/h2-9,13,17,19-22H,10-12H2,1H3/p+1/t13-,17-/m0/s1/fC18H24NO4/h19H/q+1 DCD4D48FE14A26AA