Table 1.

¹H and ¹³C NMR spectral data for compound 1 (δ in ppm, J in Hz).

Position	1 a
	δ H	δ C
1		201.8, C
2	5.91, br s	129.5, CH
3		159.6, C
4		144.8, C
5		42.0, C
6	2.31, d (6.0)	53.7, CH2
7	1.20, s	28.2, CH3
8	1.20, s	28.3, CH3
9	2.28, br s	25.1, CH3
1′	5.97, t (7.50)	129.2, CH
2′	2.55, m 2.64, m	38.0, CH2
3′	4.01, m	77.9, CH
4′	1.29, d (6.0)	22.0, CH3
1″	4.39, d (7.8)	103.9, CH
2″	3.18, t (8.0)	75.3, CH
3″	3.50–3.54, overlap	78.2, CH
4″	3.44, m	71.7, CH
5″	3.50–3.54, overlap	78.0, CH
6″	3.88, br d (11.8) 3.67, dd (11.8, 6.0)	62.8, CH2

^a Recorded in methanol-d4 at 500 MHz for proton and 125 MHz for carbon.