Table 3.

¹H (500 MHz) and ¹³C NMR (150 MHz) spectral data of 6 (CDCl₃).

P.	δC (m)	δH (m)
1	35.6 t	1.65–1.71 (m); 1.98–2.03 (m)
2	39.5 t	1.98–2.03 (m)
3	204.6 d	-
4	33.9 t	2.26–2.31 (m, 1H); 2.40–2.42 (m, 1H)
5	55.8 t	1.00–1.02 (m)
6	32.9 t	1.27–1.28 (d); 2.23–2.24 (d)
7	123.7 d	5.71 (s, 1H)
8	140.9 s	-
9	53.8 d	0.95 (m)
10	38.6 s	-
11	20.9 t	1.00–1.01 (d); 1.52–1.53 (d)
12	32.0 t	1.81–1.84 (m)
13	42.2 s	-
14	39.6 d	1.12 (m)
15	25.4 t	1.21 (m)
16	29.7 t	1.27 (m)
17	45.8 d	0.88 (m)
18	11.9 q	0.70 (s,3H)
19	17.4 q	1.17 (s, 3H)
20	31.9 d	1.81–1.84 (m)
21	19.8 q	0.81–0.82 (d, 3H)
22	29.1 d	1.28 (m)
23	40.5 t	1.22 (m, 2H)
24	55.9 d	1.07 (m, 1H)
25	36.0 d	1.24 (m, 1H)
26	18.7 q	0.90–0.91 (d, 3H)
27	19.5 q	1.00–1.01 (d, 3H)
28	20.1 q	0.79–0.82 (d, 3H)