Table 1.

¹H- (300 MHz) and ¹³C- (75.5 MHz) NMR Data of Compounds 1 and 2 in CDCl₃.

Position	Compound 1			Compound 2
	δH	δC	HMBC	δH	δC	HMBC
1	-	159.1	-	-	154.0	-
2	-	149.6	-	-	152.7	-
3	7.28, 1H, d, J = 8.7 Hz	115.9	C-2, C14	7.19, 1H, d, J = 8.4 Hz	115.6	C-2, C-14
4	8.17, 1H, d, J = 8.7 Hz	125.2	C-3, C-10,C-13, C-14	7.89, 1H, d, J = 8.4 Hz	121.0	C-3, C-10, C-13, C-14
5	8.06, 1H, s	126.9	C-7, C-10, C-11	8.12, 1H, s	127.8	6-CH3, C-10, C-11
6	-	144.6	-	-	146.2	-
7	7.58, 1H, dd, Jo = 7.8 Hz, Jm = 1.7 Hz	134.7	6-CH3, C-8, C-12	7.61, 1H, d, J = 8.1 Hz	134.6	C-6,C-8
8	8.17, 1H, d, J = 7.8 Hz	127.0	C-6, C-9	8.23, 1H, d, J = 8.1 Hz	127.1	C-7, C-9, C-12
9	-	182.7	-	-	189.1	-
10	-	182.7	-	-	181.8	-
11	-	132.9	-	-	134.0	-
12	-	132.9	-	-	131.1	-
13	-	127.4	-	-	116.1	-
14	-	127.5	-	-	125.5	-
1-OH	-	-	-	13.20,1H,s	-
1-OCH3	4.02, 3H, s	61.3	C-1	-	-	-
2-OCH3	4.02, 3H, s	56.3	C-1,C-2,C-3	4.04, 3H, s	56.4	C-1,C-3
6-CH3	2.53, 3H, s	21.8	C-5, C-6, C-7	2.56, 3H, s	22.0	C-5, C-6, C-7