002822: InChI=1.12Beta/C21H22O2/c1-3-17-19(15-11-7-5-8-12-15)21(23,18(4-2)20(17)22)16-13-9-6-10-14-16/h1-2H3,3-4H2,5-14H,18H,23H/t18-,21+/m0/s1