Table 1.

¹H (600 MHz) and ¹³C (150 MHz) NMR data of 1 (CD₃OD; δ in ppm).

Position	13C		1H	HMBC
1	89.2	(CH)	4.43 qd (6.4, 3.6)	C-3, C-8, C-9
2	45.3	(CH)	2.99 qd (6.7, 3.6)	C-10, C-3, C-8
3	140.0	(Cq)
4	55.6	(Cq)
5	199.5	(Cq)
6	73.1	(CH)	3.63 s	C-4, C-5, C-7, C-8, C-3′, C-4′, C-5′, C-11′
7	184.7	(Cq)
8	150.3	(Cq)
9	20.6	(CH3)	1.24 d (6.4)	C-1, C-2
10	20.3	(CH3)	1.22 d (6.7)	C-1, C-2, C-3
11	16.1	(CH3)	1.325 s	C-3, C-4, C-5, C-6′, C-8
1′	88.3	(CH)	4.37 p (6.4)	C-3′, C-8′, C-10′
2′	47.1	(CH)	2.91 p (7.0)	C-1′, C-3′, C-8′, C-9′
3′	139.2	(Cq)
4′	55.1	(Cq)
5′	199.0	(Cq)
6′	71.9	(CH)	3.71 s	C-3, C-4, C-5, C-11, C-4′, C-5′, C-7′, C-8′
7′	184.2	(Cq)
8′	150.8	(Cq)
9′	20.7	(CH3)	1.30 d (6.4)	C-1′, C-2′
10′	19.3	(CH3)	1.36 d (7.0)	C-1′, C-2′, C-3′
11′	14.5	(CH3)	1.332 s	C-6, C-3′, C-4′, C-5′, C-8′