Table 1.

NMR shift values of compounds isolated from the marine green alga Dasycladus vermicularis; spectra were recorded on a 600 MHz NMR instrument in deuterated water.

Position	Dasycladin A (1) in D2O		HMBC C	Dasycladin B (2) in D2O		HMBC C
	δH	δC, Type		δH	δC, Type
2		163.3, C			161.0, C
3		136.1, C			134.1, C
4	7.40 (s)	134.4, CH	2, 3, 5, 9	7.94 (s)	133.3, CH	2, 3, 5, 9
5		118.3, C		7.64 (s)	122.4, CH	4, 6, 7, 9
6		144.1, C			137.6, C
7		152.7, C			153.0, C
8	7.10 (s)	106.8, CH	6, 7, 9, 10	7.05 (s)	105.1, CH	6, 7, 9, 10
9		150.2, C			151.1, C
10		113.5, C			112.1, C
2′		163.0, C
3′		135.8, C
4′	7.96 (s)	135.8, CH	2′, 3′, 5′, 9′
5′	7.28 (s)	115.8, CH	4′, 6′, 7′, 9′
6′		145.7, C
7′		151.5, C
8′		111.2, C
9′		147.7, C
10′		113.9, C