Table 2. ¹³C NMR Spectroscopic Data for 1–6^a,b.

Position	1	2	3	4	5	6
1	173.7, C	172.9, C	171.2, C	171.0, C	171.5, C	173.6, C
2	114.9, CH	116.4, CH	117.6, CH	118.0, CH	117.7, CH	115.0, CH
3	171.9, C	167.4, C	169.3, C	169.1, C	169.6, C	171.7, C
4	68.3, CH	69.6, CH	27.7, CH2	27.6, CH2	27.6, CH2	68.3, CH
5	35.4, CH2	32.4, CH2	25.1, CH2	25.5, CH2	25.5, CH2	35.4, CH2
6	117.3, CH	116.4, CH	122.2, CH	123.3, CH	122.3, CH	117.2, CH
7	141.7, C	140.7, C	137.2, C	136.2, C	137.0, C	142.0, C
8	39.7, CH2	39.7, CH2	39.6, CH2	42.2, CH2	39.4, CH2	39.8, CH2
9	26.3, CH2	26.5, CH2	26.4, CH2	126.0, CH	26.0, CH2	26.3, CH2
10	123.6, CH	123.6, CH	123.9, CH	138.0, CH	123.9, CH	122.9, CH
11	136.1, C	135.8, C	135.5, C	73.4, C	136.0, C	136.9, C
12	40.1, CH2	40.1, CH2	40.1, CH2	42.8, CH2	33.6, CH2	40.2, CH2
13	28.2, CH2	28.3, CH2	28.3, CH2	22.9, CH2	30.9, CH2	27.9, CH2
14	136.4, C	136.5, C	136.5, C	136.6, C	80.6, C	137.0, C
15	48.1, C	48.1, C	48.2, C	35.1, C	39.7, C	35.0, C
16	215.9, C	215.8, C	216.2, C	39.8, CH2	38.0, CH2	39.8, CH2
17	36.1, CH2	36.1, CH2	36.1, CH2	19.5, CH2	22.7, CH2	19.5, CH2
18	31.7, CH2	31.6, CH2	31.6, CH2	32.8, CH2	34.0, CH2	32.7, CH2
19	127.4, C	127.3, C	127.3, C	127.1, C	150.4, C	127.0, C
20	19.6, CH3	19.6, CH3	19.6, CH3	19.8, CH3	108.3, CH2	19.8, CH3
21	24.6, CH3	24.6, CH3	24.6, CH3	28.6, CH3	24.1, CH3	28.6, CH3
22	24.6, CH3	24.6, CH3	24.6, CH3	28.6, CH3	22.1, CH3	28.6, CH3
23	16.1, CH3	16.0, CH3	16.0, CH3	27.5, CH3	16.0, CH3	16.1, CH3
24	16.5, CH3	16.4, CH3	16.2, CH3	16.5, CH3	16.3, CH3	16.4, CH3
25	71.2, CH2	71.1, CH2	99.0, CH	99.0, CH	99.3, CH	71.2, CH2
4-OAc		169.8, C
		20.8, CH3

^aAssignments based on HSQC and HMBC spectra.

^bSpectra were recorded in CDCl₃.