Table 1.

¹³C NMR Data for Compounds 1–4 in Pyridine-d₅ and 8 in CDCl₃ (δ, ppm)^a

position	1		2		3		4		8
1	72.0	d	210.7	s	205.6	s	200.9	s	200.6	s
2	31.8	t	48.8	t	47.3	t	129.6	d	126.3	d
3	77.0	d	78.5	d	80.5	d	159.1	d	159.8	d
4	37.7	s	39.9	s	40.8	s	37.0	s	36.8	s
5	46.1	d	38.7	d	43.8	d	42.5	d	44.8	d
6	30.9	t	31.5	t	30.8	t	31.5	t	35.3	t
7	75.8	d	68.4	d	23.8	t	68.0	d	72.0	d
8	53.1	d	51.5	d	39.6	d	52.8	d	55.4	d
9	135.9	s	28.7	s	33.5	s	31.9	s	133.5	s
10	84.8	s	39.4	s	48.6	s	35.9	s	47.1	d
11	121.1	d	29.2	t	209.3	s	25.8	t	127.3	d
12	37.6	t	33.6	t	52.6	t	34.9	t	37.7	t
13	45.7	s	45.9	s	46.7	s	45.8	s	45.5	s
14	45.4	s	50.1	s	49.3	s	49.8	s	48.4	s
15	34.4	t	34.5	t	34.2	t	33.4	t	28.9	t
16	28.8	t	28.4	t	28.4	t	29.6	t	28.5	t
17	51.0	d	52.4	d	51.7	d	52.5	d	50.4	d
18	15.5	q	16.0	q	17.0	q	16.3	q	15.2	q
19	42.8	t	24.4	t	25.6	t	29.1	t	33.8	t
20	37.2	d	37.4	d	37.2	d	37.5	d	36.6	d
21	19.2	q	19.3	q	19.3	q	19.3	q	18.7	q
22	35.0	t	34.9	t	34.7	t	34.9	t	39.4	t
23	29.6	t	29.5	t	29.6	t	28.5	t	33.7	t
24	78.7	d	78.7	d	78.6	d	78.7	d	79.7	d
25	81.3	s	81.3	s	81.3	s	81.3	s	73.4	s
26	21.7	q	21.6	q	21.7	q	21.6	q	23.4	q
27	24.6	q	24.6	q	24.6	q	24.6	q	26.7	q
28	27.4	q	25.6	q	26.0	q	28.0	q	27.9	q
29	24.0	q	21.7	q	21.5	q	21.4	q	20.0	q
30	20.0	q	18.9	q	19.1	q	19.1	q	18.4	q
1′	99.0	d	99.0	d	99.1	d	99.0	d
2′	75.7	d	75.7	d	75.7	d	75.7	d
3′	79.0	d	79.0	d	79.1	d	79.0	d
4′	72.1	d	72.0	d	72.1	d	72.0	d
5′	78.6	d	78.4	d	78.7	d	78.6	d
6′	63.1	t	63.0	t	63.1	t	63.0	t

^aSpectra were acquired at 150 MHz for 1 and 100 MHz for 2–4 and 8. Multiplicity was obtained from DEPT spectra.