Table 1.

¹H- and ¹³C-NMR data of 1–3 (in CD₃OD, J in Hz) ^a,b.

1			2			3
Position	δC	δH	Position	δC	δH	Position	δC	δH
1	177.4	-	1	111.9	-	1	128.9	-
2	73.4	4.70 d (4.5)	2	159.0	-	2	131.4	7.03 d (8.4)
3	80.2	4.16 dd (4.5, 3.6)	3	103.3	6.56 d (2.2)	3	116.4	6.70 d (8.4)
4	79.6	4.73 dd (8.1, 3.6)	4	158.6	-	4	157.6	-
5	74.3	5.35 ddd (8.1, 3.6, 3.0)	5	103.7	6.47 d (2.2)	5	116.4	6.70 d (8.4)
6	61.6	3.82 m	6	151.9	-	6	131.4	7.03 d (8.4)
1′	127.3	-	7	32.0	3.47 s	7	38.1	2.93 dd (14.0, 8.0) 3.05 dd (14.0, 6.4)
2′	131.4	7.47 d (8.4)	8	177.7	-	8	56.0	4.68 dd (8.0, 6.4)
3′	117.0	6.81 d (8.4)	1′	121.7	-	9	173.5	-
4′	161.5	-	2′	118.1	7.57 d (2.2)	10	62.4	4.12 q (7.1)
5′	117.0	6.81 d (8.4)	3′	146.5	-	11	14.5	1.19 t (7.1)
6′	131.4	7.47 d (8.4)	4′	152.6	-	1′	127.8	-
7′	147.2	7.67 d (15.9)	5′	116.1	6.87 d (8.4)	2′	130.8	7.38 d (8.4)
8′	115.2	6.38 d (15.9)	6′	124.7	7.58 dd (8.4, 2.2)	3′	116.9	6.78 d (8.4)
9′	168.6	-	7′	166.6	6.45 d (15.9)	4′	160.8	-
3-OCH3	61.1	3.60 s	1′′	102.4	4.89 (7.6)	5′	116.9	6.78 d (8.4)
			2′′	75.0	3.44	6′	130.8	7.38 d (8.4)
			3′′	78.0	3.43	7′	142.7	7.42 d (15.9)
			4′′	71.4	3.40	8′	117.9	6.45 d (15.9)
			5′′	78.2	3.43	9′	169.1	-
			6′′	62.6	3.88 d (12.0) 3.70 dd (12.0, 3.9)

^a Signals overlapped with solvent signals; ^b 1, 2 was measured at 300 MHz, 3 was measured at 400 MHz.