InChI=1/C21H27NO4/c1-12-10-8-9-11-15(12)18-16(19(23)25-7)13(2)22-14(3)17(18)20(24)26-21(4,5)6/h8-11,18,22H,1-7H3/t18-/m0/s1 2DECCFA3F85A37EC