Procyanidins from Adansonia digitata.

Figures & data

Figure 1 Structure of isolated procyanidins.

Table 1. ¹³C NMR data of compound 3 (100 MHz, acetone-d.₆)

C. no.	u. unit	t. unit
C-2	76.86	79.17
C-3	72.86	66.32
C-4	36.80	28.95
C-5	158.19	157.50
C-6	96.50	97.01
C-7	158.19	155.73
C-8	96.90	107.01
C-9	157.50	155.73
C-10	100.54	100.54
C-1′	132.70	131.96
C-2′	115.45	115.17
C-3′	145.29	145.23
C-4′	145.10	145.38
C-5′	115.17	114.45
C-6′	119.07	119.26

t, terminal unit; u, upper unit.

Table 2. ¹³C NMR data of compound 4 (100 MHz, acetone-d.₆)

C. no.	u. unit	t. unit
C-2	76.96	79.17
C-3	72.04	66.79
C-4	37.22	29.37
C-5	157.78	155.52
C-6	96.51	107.48
C-7	158.94	155.01
C-8	96.19	96.51
C-9	159.35	155.92
C-10	99.00	100.47
C-1′	132.20	131.69
C-2′	115.07	115.42
C-4′	145.37	145.32
C-3′	145.22	145.25
C-5′	115.20	114.87
C-6′	119.20	119.41

t, terminal unit; u, upper unit.

Table 3. ¹³C NMR data of compound 5 (100 MHz, acetone-d.₆)

C. no.	u. unit	t. unit
C-2	99.80	81.56
C-3F	67.42	65.84
C-4	29.85	30.43
C-5	156.73	156.17
C-6	97.94	96.27
C-7	157.88	151.73
C-8	96.37	106.69
C-9	154.03	151.84
C-10	104.05	102.19
C-1′	132.19	130.75
C-2′	115.12	116.67
C-3′	145.03	145.28
C-4′	146.12	145.20
C-5′	115.46	115.32
C-6′	119.81	120.51

t, terminal unit; u, upper unit.