InChI=1/C19H23NO4/c1-2-14-3-4-17-16(11-14)15(12-18(21)24-17)13-20-7-5-19(6-8-20)22-9-10-23-19/h3-4,11-12H,2,5-10,13H2,1H3 D171A3FD6E7B469A