Table 2 13C NMR (100 MHz) data for compounds 1–6 in CDCl₃ (δ in ppm).

Pos.	1	2	3	4	5	6
1	175.8, C	174.9, C	175.4, C	175.6, C	175.8, C	174.8, C
3	50.7, CH	50.7, CH	50.7, CH	50.6, CH	50.8, CH	50.6, CH
4	52.5, CH	52.9, CH	51.6, CH	51.3, CH	52.6, CH	50.6, CH
5	35.2, CH	35.3, CH	35.1, CH	35.2, CH	35.5, CH	35.2, CH
6	139.7, C	139.8, C	139.8, C	139.8, C	139.7, C	140.2, C
7	125.6, CH	125.5, CH	125.6, CH	125.7, CH	125.6, CH	125.4, CH
8	43.2, CH	43.9, CH	43.3, CH	43.6, CH	44.1, CH	44.0, CH
9	66.9, C	65.1, C	66.4, C	67.6, C	67.1, C	67.5, C
10	48.6, CH₂	48.1, CH₂	48.5, CH₂	48.5, CH₂	48.7, CH₂	48.5, CH₂
11	13.3, CH₃	13.3, CH₃	13.4, CH₃	13.4, CH₃	13.4, CH₃	13.4, CH₃
12	19.8, CH₃	19.8, CH₃	19.8, CH₃	19.8, CH₃	19.8, CH₃	19.8, CH₃
13	124.8, CH	124.6, CH	123.8, CH	124.6, CH	124.6, CH	124.8, CH
14	136.7, C	137.2, C	137.4, C	135.2, C	134.9, C	135.2, C
15	44.3, CH₂	44.1, CH₂	43.9, CH₂	43.4, CH₂	43.7, CH₂	43.9, CH₂
16	35.1, CH	35.2, CH	33.8, CH	33.0, CH	33.9, CH	33.5, CH
17	42.1, CH₂	43.2, CH₂	38.1, CH₂	35.1, CH₂	32.6, CH₂	33.7, CH₂
18	207.8, C	204.3, C	210.2, C	68.8, CH	72.2, CH	71.3, CH
19	38.0, CH₂	78.1, CH	74.2, CH	29.2, CH₂	78.8, CH	70.3, CH
20	37.4, CH₂	42.5, CH₂	45.6, CH₂	35.4, CH₂	42.9, CH₂	43.5, CH₂
21	208.1, C	203.3, C	206.8, C	211.5, C	211.2, C	212.1, C
22	25.0, CH	25.0, CH	25.0, CH	24.9, CH	24.9, CH	25.0, CH
23/24	21.4/23.6, CH₃	21.5/23.6, CH₃	21.5/23.5, CH₃	21.5/23.5, CH₃	21.5/23.6, CH₃	21.4/23.5, CH₃
25	15.3, CH₃	15.3, CH₃	15.6, CH₃	16.1, CH₃	16.2, CH₃	16.1, CH₃
26	67.4, CH₂	67.3, CH₂	67.3, CH₂	68.3, CH₂	69.1, CH₂	68.7, CH₂
27	—	56.9, CH₃	—	—	58.1, CH₃	—

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