InChI=1/C20H21NO4/c1-11(2)21-9-15-16(23-10-21)7-12(3)18-19(22)17(25-20(15)18)8-14-6-5-13(4)24-14/h5-8,11H,9-10H2,1-4H3/b17-8-	A9A7F000F4EF765E