Table 3.

¹³C (100 MHz) NMR Data of 5, 9 and 10 in C₃D₆O.

	5	9	10
Position	δC, Type	δC, Type	δC, Type
1	185.2, C	99.1, CH	104.4, CH
2	105.6, CH	151.3, C	152.1, C
3	160.1, C	137.0, C	147.4, C
4	179.2, C	150.3, C	136.6, C
4a	138.0, C	117.3, C	114.7, C
4b	112.0, C	113.3, C	120.7, C
5	158.0, C	155.7, C	141.5, C
6	97.0, CH	102.0, CH	147.6, C
7	162.0, C	160.4, C	109.6, CH
8	105.0, CH	106.4, CH	118.9, CH
8a	138.8, C	127.5, C	132.2, C
9	28.3, CH2	31.2, CH2	30.3, CH2
10	20.1, CH2	21.8, CH2	31.3, CH2
10a	140.1, C	142.7, C	136.7, C
OMe-2		55.3, CH3	55.2, CH3
OMe-3	55.7, CH3	61.2, CH3
OMe-4			59.7, CH3
OMe-5	55.2, CH3
OMe-6			55.5, CH3
OMe-7	54.9, CH3	54.5, CH3