Table 1 in Biosynthesis of tovarol and other sesquiterpenoids in Thapsia laciniata Rouy

Table 1 NMR data for tovarol (2). The spectrum was recorded in CD 3 CN at 600 MHz. Most of the signals are broad, which is probably because of a conformational equilibrium. Numbering is shown in Fig. 2. PositionδH mult (J Hz)δC type14.96, br.qd (J 12.0, 5.1)131.3 CH2β2.39, dd, (J 12.0, 5.1)25.6 CH22α2.06, ddt, (J 12.0, 5.1, 2.0)32.14, br.dd, (J 12.0,5.1)39.7 CH 22.06, br.ddt, (J 12.0, 5.1, 2.0)4132.3 C55.13, br.d (J 6.6)133.6 CH64.57, br.d (J 6.6)69.2 CH71.05, overlaid54.7 CH84.16, br.ddd, (J 11.7, 5.9, 0.7)73.2 CH9β2.49, dd (J 11.9, 6.0)45.6 CH29α1.78, t (J 11.9)10135.5 C112.00 dq, (J 10.3, 6.6)26.4 CH121.02, d, (J 6.6)21.9 CH3131.05, d, (J 6.2) overlaid21.4 CH3141.64, s24.2 CH3151.42, s16.8 CH3OH2.14, br.s overlaid