Table 1.

¹H and ¹³C NMR spectroscopic data (δ in ppm, CDCl₃) for 6.

Pos.	δC, mult	δH, (J in Hz)	HMBC	COSY
1	141.3, C
2	116.7, C
3	138.4, C
4	144.9, C
5	121.6, C
6	139.1, C
6-OMe	61.5, CH3	4.12, s	6
3-OMe	60.4, CH3	3.58, s	3
2’	104.6, CH	6.24, s	4, 5, 3’, 3a’, 7a’
3’	90.3, C
3a’	129.7, C
4’	125.0, CH	7.78, d (7.5)	3’, 6’, 7’, 7a’	5’
5’	120.1, CH	6.88, t (7.5)	3a’, 4’, 7’	4’, 6’
6’	130.1, CH	7.18, t (7.8)	3a’, 4’, 7’, 7a’	5’, 7’
7’	109.9, CH	6.70, d (8.0)	3a’, 5’	6’
7a’	148.6, C
1”	(NH)	8.44, brs	3”	2”
2”	124.8, CH	7.29, d (2.4)	2, 3”, 3a’’, 7a’’	3’’
3”	106.7, C
3a’’	126.5, C
4”	120.3, CH	7.47, d (8.1)	3”, 3a’’, 5”, 6”, 7”, 7a’’	5’’
5”	120.4, CH	7.14, t (7.5)	3a’’, 7”	4’’, 6’’
6”	122.7, CH	7.24, t (7.8)	4”, 7a’’	5’’, 7’’
7”	111.4, CH	7.43, d (8.1)	3a’’, 5”, 6”	6’’
7a’’	136.2, C
1-OH		5.06, brs	1, 2, 6