InChI=1/C18H27NO3/c1-3-11-19(12-5-8-18(21)22-2)15-9-10-16-14(13-15)6-4-7-17(16)20/h4,6-7,15,20H,3,5,8-13H2,1-2H3/p+1/t15-/m0/s1/fC18H28NO3/h19H/q+1 6F460018726E7C2A