InChI=1/C21H23NO3/c1-14(20(23)22-12-11-15-7-4-5-9-17(15)22)24-18-10-6-8-16-13-21(2,3)25-19(16)18/h4-10,14H,11-13H2,1-3H3/t14-/m0/s1 CE92E54C83085F40