InChI=1/C19H20O2/c1-4-6-14-8-10-18(20)17(12-14)15-9-11-19(21-3)16(13-15)7-5-2/h4-5,7-13,20H,1,6H2,2-3H3/b7-5- 62D3629BBFAC3592