Table 2.

NMR data for compounds 3 and 4.

No.	3				4
	13C NMRa	13C NMRb	1H NMR (J in Hz)a	1H NMR (J in Hz)b	13C NMRa	13C NMRb	1H NMR (J in Hz)a	1H NMR (J in Hz)b
1	43.1 CH	39.6 CH	2.15 m	2.47 m	43.3 CH	43.0 CH	2.22 m	2.16 m
2	34.8 CH2	34.8 CH2	2.35 m 0.88 m	2.40 m 0.97 m	36.0 CH2	36.0 CH2	2.39 m 0.88 m	2.39 m 0.88 m
3	31.7 CH	31.7 CH	1.54 m	1.54 m	31.9 CH	31.9 CH	1.56 m	1.56 m
4	40.7 CH2	40.7 CH2	1.84 m 0.78 m	1.84 m 0.78 m	41.3 CH2	41.3 CH2	1.82 m 0.78 m	1.82 m 0.78 m
5	125.2 CH	124.2 CH	5.29 brs	5.22 brs	124.8 CH	125.2 CH	5.24 m	5.26 m
6	133.6 C	134.9 C	-	-	135.3 C	135.0 C	-	-
7	57.1 CH	56.9 CH	2.84 m	2.82 m	57.9 CH	57.9 CH	2.83 m	2.82 m
8	44.6 C	47.3 C	-	-	47.1 C	47.1 CH	-	-
9	40.1 CH	40.8 CH	1.80 m	1.83 m	40.0 CH	40.0 CH	1.82 m	1.82 m
10	37.4 CH	37.4 CH	1.94 m	1.94 m	38.2 CH	38.2 CH	1.94 m	1.94 m
11	196.5 C	195.7 C	-	-	199.9 C	197.5 C	-	-
12	22.3 CH3	22.3 CH3	0.99 d (6.7)	1.01 d (6.7)	22.6 CH3	22.6 CH3	1.00 d (6.7)	1.00 d (6.7)
13	22.3 CH3	22.3 CH3	1.56 s	1.56 s	22.9 CH3	22.9 CH3	1.55 brs	1.55 brs
14	134.8 C	135.6 C	-	-	134.6 C	134.3 C	-	-
15	126.1 CH	124.8 CH	5.40 m	5.30 m	124.0 CH	124.3 CH	5.32 m	5.33 m
16	13.9 CH3	13.9 CH3	1.53 s	1.55 s	14.1 CH3	14.0 CH3	1.53 brs	1.53 brs
17	18.0 CH3	18.9 CH3	1.58 s	1.62 s	18.8 CH3	18.6 CH3	1.57 brs	1.61 brs
18	20.2 CH3	19.7 CH3	1.31 s	1.11 s	20.4 CH3	20.6 CH3	1.14 s	1.18 s
19	199.6 C	199.2 C	-	-	2005 C	203.7 C	-	-
20	112.9 C	112.9 C	-	-	108.2 C	107.9 C	-	-
21	195.6 CH	195.0 CH	9.64 s	9.55 s	160.4 CH	160.4 CH	8.10 d (14.1)	8.17 d (14.1)
21-NH	-	-	-	-	-	-	11.4 brs	11.4 brs
22					52.4 CH2	52.4 CH2	3.55 m	3.55 m
23					61.12 CH2	61.12 CH2	3.82 m	3.82 m

^amajor isomer

^bminor isomer