¹³C (150 MHz) and ¹H (600 MHz) NMR data of compounds 2–4 (δ in ppm, CD₃OD).

No.	2		3		4
	δ C	δ H (J in Hz)	δ C	δ H (J in Hz)	δ C	δ H (J in Hz)
1	180.9, CH	9.42, s	181.1, CH	9.44, s	132.9, CH	7.13, dd (2.1,1.2)
2	133.5, C		133.7, C		109.9, CH2	6.18, dd (4.1,2.1)
3	126.4, CH	6.99, d (4.0)	126.0, CH	6.99, d (4.0)	120.8, CH	7.09, dd (4.1,1.2)
4	111.5, CH	6.27, d (4.0)	112.7, CH	6.28, d (4.0)	127.9, C
5	144.6, C		141.4, C		190.1, C
6	56.4, CH2	4.64, s	64.5, CH2	4.54, s	65.4, CH2	4.68, s
1′	45.7, CH2	4.40, t (7.4)	46.0, CH2	4.37, t (7.7)	50.0, CH2	4.41, t (6.7)
2′	27.5, CH2	2.04, tt (7.4, 7.4)	27.7, CH2	2.01, tt (7.7, 7.3)	29.0, CH2	2.00, m
3′	32.0, CH2	2.36, t (7.4)	32.0, CH2	2.33, t (7.3)	34.5, CH2	2.17, m
4′	174.7, C		176.9, C		Unobserved C
	61.7, CH2	4.12, q (7.1)	66.9, CH2	3.55, q (7.0)
	14.5, CH3	1.25, t (7.1)	15.4, CH3	1.20, t (7.0)