Table 2.

¹³C nuclear magnetic resonance (NMR) data (δ in ppm) for piltunines A–F (1–6) ^a.

Position	1	2	3	4	5	6
1	37.4 CH2	37.3 CH2	34.3 CH2	36.9 CH2	36.3 CH2	39.1 CH2
2	85.5 CH	85.5 CH	84.1 CH	85.6 CH	85.7 CH	85.0 CH
3	80.0 C	79.9 C	78.9 C	80.0 C	80.0 C	78.6 C
4	35.7 CH2	35.6 CH2	35.6 CH	36.7 CH2	36.4 CH2	32.6 CH2
5	25.0 CH2	25.0 CH2	25.3 CH2	23.5 CH2	21.8 CH2	23.3 CH2
6	57.6 CH	57.7 CH	58.1 CH	60.4 CH	58.7 CH	162.7 C
7	54.4 C	54.5 C	58.5 C	56.0 C	55.5 C	60.5 C
8	35.9 CH2	35.7 CH2	31.9 CH2	40.4 CH2	40.9 CH2	33.4 CH2
9	32.6 CH2	32.8 CH2	32.6 CH2	129.7 CH	147.8 CH	33.7 CH2
10	141.3 C	144.5 C	137.4 C	152.0 C	149.0	135.4 C
11	129.7 C	125.2 C	124.8 C	77.7 C	200.8 C	202.5 C
12	178.4 C	178.4 C	178.4 C	178.6 C	178.5 C	178.3 C
13	77.0 CH2	77.0 CH2	101.1 CH	78.5 CH2	77.6 CH2	79.7 CH2
14	66.5 CH2	69.4 CH2	24.3 CH3	27.4 CH3	27.9 CH3	31.0 CH3
15	17.3 CH3	17.5 CH3	21.4 CH3	26.6 CH3
16		173.6 C		51.8 CH3
17		21.4 CH3

^a Chemical shifts were measured at 176.04 Hz in CD₃OD.