InChI=1/C20H28N2O3/c1-4-16-17(20(24)25-3)11(2)18(21-16)19(23)22-10-14-6-12-5-13(7-14)9-15(22)8-12/h12-15,21H,4-10H2,1-3H3/t12-,13+,14?,15?	4E6D6CB06F67C654