Table 1.

¹H (500 MHz) and ¹³C NMR (125 MHz) data of compounds 1 and 2.

Position	1 (in Acetone-d6)		2 (in CD3OD)
	δ C	δH Multi (J in Hz)	δ C	δH Multi (J in Hz)
1	129.8		127.0
2	136.9		130.1
3	116.9	6.60 s	117.1	6.55 s
4	145.1		145.5
5	145.3		145.7
6	115.7	6.72 s	117.0	6.64 s
7	29.0	3.86 d (23.0)	39.6	2.83 d (14.5)
		3.62 overlapped		2.67 d (14.5)
8	160.9		78.0
9	72.4	4.97 d (17.0)	80.1	4.17 d (10.0)
		4.89 d (17.0)		3.93 d (10.0)
1′	123.0		135.5
2′	116.2	6.59 d (2.0)	116.0	6.58 d (2.0)
3′	145.9		146.3
4′	144.6		144.8
5′	116.1	6.63 d (8.0)	116.2	6.68 d (8.0)
6′	120.3	6.45 dd (8.0, 2.0)	120.2	6.52 dd (8.0, 2.0)
7′	42.3	4.53 s	47.4	4.18 d (3.0)
8′	128.2		56.2	3.24 d (3.0)
9′	173.9		181.0