Table 1.

¹³C NMR (100 MHz) data of Compounds 1 − 2^a

	1 b	2 b
position	δC,type	δC,type
2	157.80,C	157.79,C
3	135.11,C	135.12,C
4	178.77,C	178.77,C
5	160.98,C	160.99,C
6	98.59,CH	98.60,CH
7	161.88,C	161.89,C
8	108.77,C	108.78,C
9	153.48,C	153.49,C
10	106.06,C	106.07,C
11	21.89,CH2	21.90,CH2
12	122.60,CH	122.61,CH
13	131.58,C	131.58,C
14	25.94,CH3	25.93,CH3
15	18.33,CH3	18.33,CH3
1'	122.73,C	122.74,C
2',6'	131.04,CH	131.04,CH
3',5'	114.55,CH	114.56,CH
4'	159.56,C	159.56,C
1''	102.46,CH	102.46,CH
2''	70.12,CH	70.13,CH
3''	70.55,CH	70.55,CH
4''	71.18,CH	71.17,CH
5''	70.78,CH	70.79,CH
6''	17.93,CH3	17.93,CH3
1'''	101.01,CH	101.01,CH
2'''	73.83,CH	73.84,CH
3'''	77.07,CH	77.08,CH
4'''	71.58,CH	71.85,CH
5'''	77.66,CH	77.67,CH
6'''	61.10,CH2	70.17,CH2
OCH3	55.98,CH3	55.99,CH3

^aThe chemical shifts (δ) are expressed in parts per million. ^bData recorded in dimethyl sulfoxide-d₆