Table 1.

¹H NMR and ¹³C NMR data for compounds 1 and 2 in DMSO-d₆ (500, 125 MHz).

No.	1		No.	2
	δC, type	δH (J in Hz)		δC, type	δH (J in Hz)
1	23.2, CH2	3.25 td (7.0, 2.0)	1	33.9, CH2	4.03 d (16.5) 3.91 d (17.0)
2	36.4, CH2	2.92 t (7.5)	2	95.5, C
3	204.8, C		3
3a	110.7, C		3a	137.8, C
3b	131.6, C		3b	118.3, C
4	161.9, C		4	142.8, C
5	116.2, CH	7.16 d (9.0)	5	122.2, CH	7.51 d (9.0)
6	133.1, CH	8.79 d (9.5)	6	115.6, CH	8.35 d (9.0)
6a	120.7, C		6a	124.4, C
6b	130.8, C		6b	120.3, C
7	104.4, CH	7.82 d (2.0),	7	133.5, CH	9.08 d (9.5)
8	156.0, C		8	118.0, CH	7.40 d 9.0
9	114.4, CH	7.30 d (1.5)	9	165.6, C
9a	142.1, C		9a	111.3, C
9b	120.1, C		9b	124.6, C
10	67.4, CH	4.82 dd (9.0, 3.0)	10	188.2, C
11	31.5, CH2	2.18 dq (10.0, 4.5) 1.88 dtd (12.5, 9.5, 4.5)	11	125.9, CH	6.94 d (10.0)
12	24.3, CH2	3.20 dt (17.0, 5.5) 3.00 ddd (16.5, 10.0, 5.0)	12	139.0, CH	8.63 d (10.0)
12a	133.4, C		12a	119.9, C
12b	121.4, C		12b	136.5, C
OH-4		13.27 brs	13	168.6, C
OH-8		9.87 brs	1′	65.1, CH2	4.09 td (6.5, 2.0)
OH-10		5.48 brs	2′	30.0, CH2	1.46 qui (7.5)
			3′	18.3, CH2	1.14 sex (7.5)
			4′	13.4, CH3	0.71 t (7.5)
			OH-2		9.76 brs
			OH-4		8.14 brs
			OH-9		15.12 brs