Table 1.

NMR data for placotylene A (1, CDCl₃) ^a.

No.	δC	δH (J in Hz) b	COSY	HMBC
1-OH		1.96 brs
1	60.4, CH2	3.75 t (6.0)	2	2, 3
2	23.6, CH2	2.53 t (6.0)	1	1, 3, 4, 5
3	73.8, C
4	67.1, C
5	65.1, C
6	78.1, C
7	19.0, CH2	2.25 t (6.0)	8	4, 5, 6, 9
8	28.5, CH2	1.51 m	7, 9	6, 7, 9
9	28.1, CH2	1.38 m	8, 10	8, 10
10	28.1, CH2	1.29 m	9, 11	9, 11
11	28.3, CH2	1.39 m	10, 12	12, 13
12	35.9, CH2	2.05 m	11, 13	11, 13, 14
13	146.5, CH	6.50 dt (14.3, 7.2)	12, 14	11, 12, 18
14	74.5, CH	5.98 d (14.3)	13	12, 13

^a Recorded at 600 MHz for ¹H NMR and 150 MHz for ¹³C NMR. ^b Numbers of attached protons were determined by analysis of 2D spectroscopic data.