Table 2.

NMR data of compounds 3 (600 MHz for ¹H, 150 MHz for ¹³C) and 4 (400 MHz for ¹H, 100 MHz for ¹³C) in CDCl₃.

NO.	3		4
	δC	δH Mult (J = Hz)	δC	δH Mult (J = Hz)
1	80.4 d	3.23 m	29.0 t	1.55 m (β)
		-		1.81 m (α)
2	25.6 t	1.53 m (α)	19.9 t	0.87 br s (β)
		1.92 m (β)		1.61 m (α)
3	31.9 t	1.31 m (β)	33.1 t	1.25 m
		1.72 m (α)		1.47 m
4	44.4 s	-	37.5 s	-
5	52.5 d	1.41 br s	60.0 d	1.67 s
6	79.9 d	5.25 s	68.0 d	3.33 s
7	90.9 s	-	70.4 d	5.44 d (2.8)
8	82.9 s	-	52.5 s	-
9	39.8 d	3.40 m	47.1 d	2.43 dd (6.6, 1.5)
10	47.9 d	2.20 m	50.9 s	-
11	49.8 s	-	75.4 d	5.28 d (6.4)
12	28.7 t	2.13 m (β)	40.1 d	2.28 br s
		1.88 dd (α) (10, 5.2)		-
13	38.7 d	2.40 m	28.0 t	1.43 m
				2.34 m (hidden)
14	83.4 d	3.73 t (3.2)	39.2 d	2.34 t (9.6)
15	33.4 t	1.85 m (α)	66.0 d	4.06 s
		2.71 m (β)		-
16	81.3 d	3.28 t (5.2)	150.8 s	-
17	63.5 d	4.16 br s	112.2 t	5.04 d (0.9)
18	22.1 q	1.17 s	28.9 q	0.97 s
19	169.9 d	7.46 br s	62.7 t	2.49 s
20	-	-	74.1 d	2.75 s
1-OCH3	55.4 q	3.22 s	-	-
14-OCH3	57.7 q	3.45 s	-	-
16-OCH3	56.4 q	3.34 s	-	-
-OCH2O-	93.9 t	4.93 s	-	-
		4.97 s		-
OAc	169.5 s	-	170.3 s	-
	21.5 q	2.06 s	21.4 q	2.06 s
ArCO			167.1 s	-
1’			129.7 s	-
2’, 6’			130.1 d	8.14 d (6.8)
3’ ,5’			128.4 d	7.45 m
4’			133.4 d	7.58 m