InChI=1S/C23H21NO3/c1-3-4-12-24-14-16-13-19(27-2)22(25)21-17(15-8-6-5-7-9-15)10-11-18(20(16)21)23(24)26/h5-11,13-14H,3-4,12H2,1-2H3