“…1 H NMR (500 MHz, CDCl3/CD3OD): δ 1.30 (s, C 9 H3), 1.75 (m, C 10 H3, all J ≤ 2.5 Hz), 2.01 (dddq, H 5e , 2 J = 17.6, J5e,6a 5.6, J5e,4 = 5.3, J5e,10 = 1.6 Hz), 2.12 (ddd, H 6a , J6a,5a = 11.3, J6a,5e = 5.6, J6a,1e = 1.8 Hz), 2.26 (dddqd, H 5a , 2 J = 17.6, J5a,6a = 11.3, J5a,4 = J5a,10 = 2.5, J5a,2e = 1.3 Hz), 3.35 (dd, H 8 , 2 J = 10.2, J8,9 = 0.6 Hz), 3.39 (d, H 8' , 2 J = 10.2 Hz), 3.64 (br. d, H 2e , J2e,1e = 2.7 Hz), 4.10 (dd, H 1e , J1e,2e = 2.7, J1e,6a = 1.8 Hz), 5.62 (ddq, H4 , J4,5e = 5.3, J4,5a = 2.5, J4,10 = 1.5 Hz) 13. C NMR (125 MHz, CDCl3/CD3OD): δ 70.40 (d, C 1 ), 71.99 (d, C 2 ), 130.85 (s, C 3 ), 125.18 (d, C 4 ), 21.66 (t, C 5 ), 36.17 (d, C 6 ), 73.04 (s, C 7 ), 17.79 (t, C 8 ), 25.19 (q, C 9 ), 20.73 (q, C 10 ).…”