Table 1.

NMR spectroscopic data for saccharoquinoline (1) in DMSO-d₆, δ in ppm ^a.

No.	1
	δC, mult. b	δH (J in Hz)	COSY	HMBC
1	38.5, CH2	0.99, brd; 1.83, d (14.3)	2
2	18.0, CH2	1.44, m c; 1.66, m c	1, 3
3	41.3, CH2	1.18 c; 1.39 c	2
4	32.8, C
5	55.3, CH	1.08 c		4, 6, 10, 12, 14
6	19.3, CH2	1.42, m c; 1.74, mc	7
7	40.3, CH2	1.73 c; 2.15, dt (12.3, 3.6)	6
8	78.1, C
9	51.2, CH	1.67 c	11	8, 10, 11, 14, 15
10	36.6, C
11	17.9, CH2	2.69, dd (16.8, 5.2); 2.91, dd (16.8, 13.1)	9	8, 9, 1′, 6′
12	21.5, CH3	0.85, s		3, 4, 5, 13
13	33.2, CH3	0.90, s		3, 4, 5, 12
14	14.6, CH3	0.94, s		1, 5, 9, 10
15	20.3, CH3	1.18, s		7, 8, 9
1′	104.9, C
2′	122.8, C
3′	133.6, C
4′	135.0, C
5′	136.9, C
6′	145.8, C
7′	132.1, CH	8.40, d (8.6)	8′	1′, 3′, 9′
8′	116.9, CH	7.92, d (8.6)	7′	2′
9′	140.8, C
10′	165.6, C
4′-OH		9.54, s		3′, 4′, 5′

^a 300 MHz for ¹H NMR and 75 MHz for ¹³C NMR. ^b Numbers of attached protons were determined by analysis of 2D NMR spectroscopic data (500 MHz). ^c Overlapping signals.