Table 2.

¹H-NMR and ¹³C-NMR data of compound 6.

Atom no.	DEPT	δ H (mult., J in Hz)	δ C
1	C		120.3
2	CH	7.52 (1H, d, 1.9)	112.7
3	C		147.5
4	C		153.4
5	CH	6.80 (1H, d, 8.0)	115.4
6	CH	7.63 (1H, dd, 8.0, 1.9)	125.6
7	C		166.7
4-OCH3	CH3	3.97 (3H, s)	56.3
1′	CH	4.56 (1H, d, 7.2)	98.3
2′	CH	3.39–3.62 (4H, m)	73.4
3′	CH		78.7
4′	CH		70.3
5′	CH		74.5
6′	CH2	4.37 (1H, dd, 11.9, 2.0) 4.05 (1H, dd, 11.9, 7.4)	64.2