Table 2.

¹H (400 MHz, CDCl₃) and ¹³C (100 MHz, CDCl₃) NMR data and COSY and HMBC for 2.

Position	δH (J in Hz)	δC, Type	COSY	HMBC
1a/b	1.53 m; 1.90 m	30.8, CH2	H2-2	n. o. a
2a/b	1.31 m; 1.93 m	31.3, CH2	H2-1, H-3	n. o.
3	3.51 m	71.4, CH	H2-2, H2-4	n. o.
4a/b	2.23 m; 2.44 m	40.6, CH2	H-3	n. o.
5	-	140.4, C	-	-
6	5.48 brd (5.6)	121.5, CH	H2-7	C-4, C-7, C-8
7a/b	2.02 m; 2.39 m	33.0, CH2	H-6, H-8	n. o.
8	3.03 td (12.4, 6.8)	43.6, CH	H2-7, H-14	C-7, C-9, C-14
9	-	217.5, C	-	-
10	-	48.5, C	-	-
11a/b	3.69 m; 3.83m	59.4, CH2	H2-12	n. o.
12	1.32 m; 1.68 m	40.3, CH2	H2-11	n. o.
13	-	45.6, C	-	-
14	2.61 m	41.8, CH	H-8, H2-15	n. o.
15	1.30 m; 1.56 m	24.4, CH2	H-14, H2-16	n. o.
16	1.30 m; 1.74 m	25.0, CH2	H2-15, H-17	-
17	1.65 m	49.2, CH	H2-16	-
18	0.67 s	17.3, CH3	-	C-11, C-12, C-13, C-14, C-17
19	1.38 s	22.9, CH3	-	C-1, C-5, C-9, C-10
20	1.41 m	34.0, CH	H3-21	n. o.
21	1.01 d (6.8)	19.4, CH3	H-20	C-17, C-20, C-22
22	1.17 m; 1.51 m	34.7, CH2	H-23	n. o.
23	1.81 m; 2.39 m	31.0, CH2	H-22	n. o.
24	-	148.5, C	-
25	-	142.7, C	-
26	4.59 d (1.2)	112.5, CH2	-	C-25
27	1.90 s	21.2, CH3	-	C-24, C-25, C-26
28	5.06 s	112.0, CH2	-	C-23, C-24, C-25

^a n. o. = not observed.