From the marine sponge Jaspis sp., a new isomalabaricane triterpenoid 22, 23- dihydrostellettin D (1) was isolated, and its structure was established on the basis of IR, MS and extensive 2D NMR spectroscopic analysis....From the marine sponge Jaspis sp., a new isomalabaricane triterpenoid 22, 23- dihydrostellettin D (1) was isolated, and its structure was established on the basis of IR, MS and extensive 2D NMR spectroscopic analysis. It is a unique skeleton compound rarely obtained from Chinese marine organisms.展开更多
A new dihydroflavone glycoside was isolated from the underground parts of Glycyrrhiza uralensis. Its structure was elucidated as 7-hydroxyl-4'-O-β-D-(6'-O-α-hydroxylpropionyl) glucopyranosyl dihydroflavone b...A new dihydroflavone glycoside was isolated from the underground parts of Glycyrrhiza uralensis. Its structure was elucidated as 7-hydroxyl-4'-O-β-D-(6'-O-α-hydroxylpropionyl) glucopyranosyl dihydroflavone by spectral methods.展开更多
Two new compounds, namely 7α, 10α-dimethyl-3β-isopropene-1, 2-ene-octahydro- naphthalene (1) and ethyl 5Z,8Z,11Z,14Z-nonadecatetraenoate (2) were isolated from the soft coral Nephthea hainansis. Compound 1 was a ...Two new compounds, namely 7α, 10α-dimethyl-3β-isopropene-1, 2-ene-octahydro- naphthalene (1) and ethyl 5Z,8Z,11Z,14Z-nonadecatetraenoate (2) were isolated from the soft coral Nephthea hainansis. Compound 1 was a pseutosesquiterpene and 2 was a polyunsaturated fatty acid ethylate. Their structures were established on the basis of spectroscopic methods.展开更多
基金The work was supported by grants from National High Technology Development Project(863 project)(No.2001AA620403 and 2002AA217081)NNSFC(30171106,40176038)
文摘From the marine sponge Jaspis sp., a new isomalabaricane triterpenoid 22, 23- dihydrostellettin D (1) was isolated, and its structure was established on the basis of IR, MS and extensive 2D NMR spectroscopic analysis. It is a unique skeleton compound rarely obtained from Chinese marine organisms.
文摘A new dihydroflavone glycoside was isolated from the underground parts of Glycyrrhiza uralensis. Its structure was elucidated as 7-hydroxyl-4'-O-β-D-(6'-O-α-hydroxylpropionyl) glucopyranosyl dihydroflavone by spectral methods.
基金supported by grants from National High Technology Development Project(863 project)(No.2001AA620403 and 2002AA217081)NNSFC(30171106,40176038)
文摘Two new compounds, namely 7α, 10α-dimethyl-3β-isopropene-1, 2-ene-octahydro- naphthalene (1) and ethyl 5Z,8Z,11Z,14Z-nonadecatetraenoate (2) were isolated from the soft coral Nephthea hainansis. Compound 1 was a pseutosesquiterpene and 2 was a polyunsaturated fatty acid ethylate. Their structures were established on the basis of spectroscopic methods.
