Table 3.

¹³C-NMR) data for drimenol, polygodial (1), isotadeonal (2), drimenal (3) and winterdial (4). Data were obtained at 150 MHz in CDCl₃. Chemical shifts (δ) are reported in ppm. Carbon numbering is provided in Figure 1.

Carbon Number	Compound
	Drimenol	1	2	3	4
1	40.0	39.5	37.2	40.3	77.6
2	18.7	18.0	18.5	18.4	25.1
3	42.2	41.7	42.2	41.9	32.7
4	33.1	33.1	33.0	33.2	38.9
5	50.0	48.9	44.4	49.2	78.2
6	23.7	25.2	25.7	23.8	35.2
7	124.3	154.3	153.6	125.6	150.6
8	133.0	138.2	137.5	127.9	141.5
9	57.4	60.3	58.6	67.7	56.4
10	36.1	36.8	37.8	37.1	47.5
11	61.1	202.0	202.3	206.8	201.2
12	22.1	193.2	192.9	21.6	193.7
13	33.5	33.1	21.6	15.8	13.4
14	22.2	22.9	22.0	22.1	27.8
15	15.1	15.2	32.8	33.3	25.2
1’					166.6
2’					116.0
3’					131.0
4’					127.3
5’					131.0
6’					116.7
7’					160.7