Table 1.

¹³C NMR (125 MHz) and ¹H NMR (500 MHz) data of 1 (CDCl₃).

Position	δc, Type	δH, mult (J in Hz)
2	161.0, C
3	107.8, CH	6.16, s
3a	138.7, C
4	28.8, CH2	4a, 3.07, dd (16.6, 6.1)
		4b, 2.70, dd (16.6, 10.5)
5	69.6, CH	5.11, dd (6.1, 10.5)
6	87.3, C
7	181.9, C
7a	144.1, C
8	16.4, CH3	1.56, s
1′	119.0, CH	6.28, dd (15.8, 1.4)
2′	134.2, CH	6.58, dd (15.8, 6.7)
3′	18.9, CH3	1.83, d (6.7)
1′′	170.3, C
2′′	104.8, C
3′′	144.2, C
4′′	112.2, CH	6.03, d (1.8)
5′′	161.6, C
6′′	101.2, CH	6.08, d (1.8)
7′′	164.9, C
8′′	24.4, CH3	2.39, s