Table 2.

¹³C NMR data of compounds 1–12 in CD₃OD (δ in ppm, measured at 150 MHz)

No	1	2	3	4	5	6	7	8	9	10	11	12
1	78.4	77.3	78.1	75.8	76.3	77.6	138.2	137.6	194.6	65.1	146.0	54.3
2	31.9	30.5	33.4	72.2	31.9	31.6	209.9	209.9	128.0	212.0	207.5	34.0
3	23.6	35.1	24.4	36.8	29.5	28.9	48.8	49.1	214.7	130.6	51.7	27.7
4	36.9	74.2	37.5	25.7	68.4	67.9	33.2	33.3	52.7	183.3	76.9	41.1
5	37.4	44.8	39.6	43.6	45.7	42.9	46.4	46.4	52.0	82.8	177.8	26.7
6	24.8	30.4	24.4	16.4	25.3	24.7	29.0	30.2	43.9	41.4	28.2	55.9
7	40.0	40.6	36.5	47.1	40.2	39.8	49.1	48.8	50.8	43.1	46.1	32.7
8	36.1	24.9	25.5	66.5	25.4	36.3	27.5	26.4	29.5	31.9	27.3	34.1
9	76.7	25.6	30.2	41.9	30.1	76.4	38.8	38.7	41.4	35.5	33.7	78.5
10	40.9	42.3	38.2	39.6	38.8	41.3	157.4	157.8	75.2	33.9	28.4	220.2
11	41.6	41.8	44.9	40.9	41.4	41.6	76.1	76.1	151.9	153.2	76.1	152.4
12	65.4	28.9	65.3	18.7	21.3	18.0	68.9	69.0	109.6	109.0	68.7	109.0
13	18.2	68.8	20.9	22.1	24.7	25.1	20.9	20.7	20.6	20.7	20.4	19.5
14	25.1	27.5	18.9	25.4	27.7	27.5	16.3	16.3	17.0	13.8	26.4	20.8
15	27.5	24.5	70.8	26.7	–	–	21.7	21.8	32.1	14.3	17.5	17.9