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Citation:
Jie SUN, Li Jun HAN, Da Yong SHI, Xiao FAN, Su Juan WANG, Shuai LI, Yong Chun YANG, Jian Gong SHI. Sesquiterpenes from Red Alga Laurencia tristicha[J]. Chinese Chemical Letters,
;2005, 16(12): 1611-1614.
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Three naturally new sesquiterpenes named 10-hydroxyepiaplysin, 10-hydroxyaplysin and 10-hydroxybromoepiaplysin have been isolated from Laurencia tristicha. On the basis of the spectroscopic techniques their structures were elucidated as (3S, 3αR, 8βS)-(-)-2, 3, 3α, 8β-tetra-hydro-7-bromo-3-hydroxy-3, 3α, 6,8β-tetramethyl-lH-cyclopenta[b]benzofuran, (3R, 3αR, 8βS)-(-)-2,3,3o, 8β-terahydro-7-bromo-3-hydroxy-3, 3α,6,8β-tetramethyl-1H-cyclopenta[b]benzofuranand (3S, 3αR, 8βS)-(-)-2, 3,3α,8β-tetrahydro-3-hydroxy-3,3α,6,8β-tetramethyl-1H-cyclopenta[b]-benzofuran, respectively.
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Keywords:
- Red alga,
- Laurencia tristicha,
- sesquiterpenes
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