Table 4.

¹³C NMR Data (δ) for Compounds 6–9

position	6a	7b	8c	9d
2	138.0	137.7	139.7	137.3
3	35.8	36.1	46.2	36.2
5	61.2	61.2	61.2	60.2
6	18.5	18.4	17.9	17.3
7	110.1	110.2	110.0	110.2
8	130.6	130.7	131.2	130.0
9	118.8	118.8	118.2	117.7
10	119.3	119.3	118.8	121.9
11	122.4	122.2	121.6	119.0
12	110.7	110.6	110.6	109.9
13	137.7	137.7	137.6	136.1
14	35.5	35.1	40.1	35.6
15	35.9	35.8	36.0	35.7
16	53.6	53.6	55.9	52.1
17	70.2	70.2	70.3	70.6
18	12.2	12.2	12.2	12.2
19	119.3	119.3	119.2	120.2
20	138.6	138.5	139.0	136.7
21	52.4	52.5	52.5	52.0
N-Me	42.5	42.5	42.4	42.1
CO2Me	174.6	173.5	173.5	173.9
	53.0	49.8	49.6	50.2
2’	138.3	136.2	138.9	190.4
3’	93.9	62.1	53.3	48.8
5’	60.9	52.8	54.3	49.0
6’	69.5	22.4	22.5	34.0
7’	117.9	109.6	110.4	88.2
8’	123.4	125.4	129.6	134.5
9’	116.5	117.4	117.6	120.1
10’	107.5	106.3	135.7	132.3
11’	152.9	152.8	122.3	156.9
12’	116.9	116.4	111.6	104.1
13’	134.0	136.8	138.2	150.9
14’	30.8	28.7	28.3	27.0
15’	30.4	27.5	32.9	32.0
16’	54.3	55.1	53.5	58.7
17’	31.6	37.0	36.8	35.1
18’	11.8	11.9	11.9	11.5
19’	27.2	27.1	27.8	26.6
20’	39.0	38.8	39.4	37.5
21’	60.7	58.3	57.8	58.1
22’		61.9
CO2Me’	173.3	174.9	175.1	173.4
	49.8	52.8	52.6	53.2
OMe-11’	57.6	54.7		56.0

^a150 MHz, acetone-d₆.

^b125 MHz, acetone-d₆.

^c200 MHz, acetone-d₆.

^d125 MHz, CDCl₃.