Table 2.

¹³C (100 MHz) NMR data of compounds 1, 2, and 4–6 (in CD₃OD).

No.	1	2	4	5	6
1	204.6, C	203.0, C	162.1, C	204.4, C	204.4, C
2	36.1, CH2	34.5, CH2		36.1, CH2	36.1, CH2
3	32.7, CH2	31.4, CH2	156.3, C	32.7, CH2	32.8, CH2
4	68.6, CH	67.2, CH	98.9, CH	68.6, CH	68.7, CH
4a	150.2, C	147.7, C	135.3, C	151.3, C	151.2, C
5	102.2, CH	100.4, CH	135.8, C	101.9, CH	101.8, CH
6	164.8, C	164.1, C	158.5, C	166.2, C	166.1, C
7	119.1, C	111.9, C	100.2, CH	116.7, C	116.7, C
8	162.7, C	162.0, C	161.0, C	164.3, C	164.3, C
8a	111.1, C	109.6, C	101.2, C	110.8, C	110.8, C
9	56.4, CH3	55.0, CH3	19.5, CH3	56.3, CH3	56.2, CH3
10	63.4, CH	25.3, CH2	56.4, CH3	70.3, CH	70.4, CH
11	22.2, CH3	60.1, CH2	61.6, CH3	20.0, CH3	20.1, CH3
1′				204.2, C	204.2, C
2′				36.1, CH2	36.1, CH2
3’				32.7, CH2	32.8, CH2
4′				68.6, CH	68.6, CH
4a′				150.3, C	150.3, C
5′				101.3, CH	101.3, CH
6′				165.9, C	165.9, C
7′				113.0, C	113.1, C
8′				163.7, C	163.6, C
8a′				110.7, C	110.7, C
9′				56.2, CH3	56.1, CH3
10′				59.6, CH2	59.8, CH2