Table XVI.

¹H NMR Data of Montanine-Type Alkaloids

Alkaloid	73	74
H-1	5.37 br dddd	5.52 dt
H-2α	—	2.05 ddt
H-2β	3.73 dddd	2.57 dddd
H-3	3.65 ddddd (β)	3.62 ddd (α)
H-4α	1.36 ddd	3.31 t
H-4β	1.83 ddd	—
H-4a	3.20 ddd	3.16 br d
H-6α	4.16 br d	4.32 d
H-6β	3.63 br d	3.83 d
H-7	6.60 br s	6.51 s
H-10	6.67 br s	6.56 s
H-11	3.25 br s	3.33 br d
H-12ax	2.86 br s	3.03 d
H-12eq	2.86 br s	2.94 dd
OCH2O	5.90 (2d)	5.86 (2d)
Solvent	A	c
MHz	400	500
Reference	(361)	(80)

Solvent a: DMSO-d₆, b: CDCl₃-CD₃OD, c: CD₃OD, d: CDCl₃.