“…1 H NMR (400 MHz, CDCl3, δ, ppm): 7.48 (d, J8,7 = 7.7 Hz, 1H, H-8), 7.11-7.09 (s+d, J7,8 = 10.0 Hz, 2H, H-5, H-7), 2.74 (dd, J1-ax,1-eq = 13.0 Hz, J1-ax,2 = 6.1 Hz, 1H, 1-eq CH2), 2.61 (d, J1-eq,2 = 13.0 Hz, 1H, 1-eq CH2), 2.49-2.48 (m, 1H, 2-CH), 2.36 (s, 3H, 14-CH3), 2.34-2.29 (m, 2H, 4-eq CH2/11-CH), 2.07 (tt, J3-ax,(3-eq,4-ax) = 14.1 Hz, J3-ax,(2-eq,4-eq) = 4.0 Hz, 1H, 3-ax CH2), 1.34 (dm, J3-eq,3-ax = 14.1 Hz, 1H, 3-eq CH2), 1.24 (td, J4-ax,(3-ax,4-eq) = 14.1 Hz, J4-ax,3-eq = 3.7 Hz, 1H, 4-ax CH2), 1.21 (d, J12,11 = 6.8 Hz, 3H, 12-CH3), 0.81 (d, J10,2 = 7.2 Hz, 3H, 10-CH3), 0.25 (d, J13,11 = 6.7 Hz, 3H, 13-CH3). 13 (13), 182 (18), 168 (10), 157 (100), 144 (8), 128 (12), 115 (12), 91 (3), 89 (3). UV/Vis (CHCl3, λmax, nm, (ε)): 261 (2.09).…”