Table 1.

¹H- and ¹³C-NMR data of 3 in CD₃OD.

Position	δ C a	δHb (Mult., J in Hz)	Position	δ C a	δHb (Mult., J in Hz)
1	130.9	-	5′	116.2	6.75 (d, 8.0)
2	112.4	7.17 *	6′	122.2	6.68 (dd, 1.5, 8.0)
3	150.9	-	7′	36.1	2.79 (t, 7.5)
4	149.7	-	8′	42.4	3.51 (t, 7.5)
5	117.3	7.17 *	3-OCH3	56.7	3.88 (s)
6	122.7	7.12 (br s)	3′-OCH3	56.4	3.84 (s)
7	141.4	7.47 (d, 15.5)	1″	100.2	5.32 (d, 8.0)
8	120.4	6.50 (d, 15.5)	2″	72.0	3.70 *
9	168.8	-	3″	72.9	4.18 (t, 3.0)
1′	132.0	-	4″	68.6	3.63 (dd, 3.0, 10.0)
2′	113.5	6.83 (d, 1.5)	5″	75.9	3.87 (m)
3′	148.9	-	6″	62.8	3.71 *
4′	146.0	-			3.88 (dd, 6.0, 12.0)

^a 125 MHz, ^b 500 MHz. * Overlapped signals. Assignments were made using the HMQC and HMBC spectra.