Norisoprenoids from Ulva lactuca.
Five norisoprenoids were isolated from the green marine alga Ulva lactuca. Two new compounds were assigned to (3R,5R,6R,7E)3,5,6-trihydroxy-7-megastigmen-9-one (1) and (3S,5R,6S,7E)3,5,6-trihydroxy-7-megastigmen-9-one (2). The structures and absolute configurations of the five compounds were determined by analyses of NMR, MS and circular dichroism (CD).
Sun
Y
Y
School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
Zhan
Y-C
YC
Sha
Y
Y
Pei
Y-H
YH
D002942:Circular Dichroism; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D045792:Norisoprenoids / Q000737:chemistry / Q000302:isolation & purification*; D044445:Ulva / Q000737:chemistry*
D045792:Norisoprenoids