Table 2: -NMR and -NMR data of compound 6.

Atom no.DEPT (mult., in Hz)

1C120.3
2CH7.52 (1H, d, 1.9)112.7
3C147.5
4C153.4
5CH6.80 (1H, d, 8.0)115.4
6CH7.63 (1H, dd, 8.0, 1.9)125.6
7C166.7
4-OCH3CH33.97 (3H, s)56.3
1′CH4.56 (1H, d, 7.2)98.3
2′CH3.39–3.62 (4H, m)73.4
3′CH78.7
4′CH70.3
5′CH74.5
6′CH24.37 (1H, dd, 11.9, 2.0)
4.05 (1H, dd, 11.9, 7.4)
64.2