InChI=1/C23H25NO4/c1-5-16-9-7-8-14(3)22(16)24-23(26)15(4)27-18-10-11-19-17(6-2)12-21(25)28-20(19)13-18/h7-13,15H,5-6H2,1-4H3,(H,24,26)/t15-/m0/s1/f/h24H D936F838D646FD82