Table 2.

¹³C and ¹H NMR data of dematophoranes A and B (1–2).

	(1)		(2)
1	75.2, CH	3.68, dd (8.6, 7.4)	69.9, CH	4.26, m
2	29.7, CH2	1.73, m	29.7, CH2	1.70, m
3a	34.9, CH2	1.13, dt (13.0, 3.4)	34.3, CH2	1.06, m
3b		1.61, m		1.68, m
4	38.0, C		37.8, C
5	55.5, CH	2.95, s	48.9, CH	3.76, s
6	212.4, C	4.66, m	211.1, C
7	73.8, CH		76.5, CH	4.76, m
8	131.8, C		139.65, C
9	146.9, C		75.3, C
10	51.2, C		52.4, C
11a	24.9, CH2	2.34, dt (19.4, 7.5)	31.3, CH2	2.06, m
11b		2.54, ddd (19.2, 7.9, 5.5)		2.42, td (14.7, 3.4)
12a	30.4, CH2	1.41, m	32.2, CH2	1.44, dtd (14.2, 4.1,2.8)
12b		1.81, ddd (13.5, 7.9, 6.1)		1.75, td (14.2, 3.4)
13	40.2, C		37.9, C
14	72.7, CH	3.99, s	130.6, CH	5.84, s
15	145.8, CH	6.10, dd (17.6, 11.0)	149.4, CH	5.86, dd (17.6, 10.6)
16a	113.3, CH2	5.10, dd (10.2, 1.6)	110.9, CH2	4.92, dd (10.7, 1.4)
16b		5.10, dd (10.2, 1.6)		5.00, dd (17.5, 1.4)
17	22.8, CH3	0.95, s	24.1, CH3	1.01, s
18	18.6, CH3	1.24, s	18.8, CH3	1.21, s
19a	70.7, CH2	3.08, d (10.8)	70.6, CH2	3.05, m
19b		3.46, d (10.8)		3.54, m
20	18.0, CH3	1.01, s	13.9, CH3	0.87, s
OH-1				3.41, d (5.6)
OH-7				3.84, d (4.3)
OH-9				4.35, s
OH-18				3.74, t (5.8)

1 (125 MHz and 500 MHz, MeOH-d₄), 2 (175 MHz and 700 MHz, acetone-d₆),