InChI=1/C25H28O3/c1-3-16-25(17-15-19-11-7-5-8-12-19)18-22(26)23(24(27)28-25)21(4-2)20-13-9-6-10-14-20/h4-14,21,23H,2-3,15-18H2,1H3/t21-,23+,25+/m1/s1 B9B1B5ED9DC9A296