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milkbaby1204

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[求助] 求微谱结构,详细,十万火急

化合物1碳谱数据(300 MHz, DMSO):202,;171,;144,;126,;69,;62,14,;61.14,;55,;42.47,;37.15,;36.36,;27.24,;26.23,;24.95.;23.08,;22.86,;21.49,;17.71,;16.30,;12.64,;


请回复详细的微谱推测结构
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yaolan123

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【答案】应助回帖

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感谢参与,应助指数 +1
milkbaby1204: 金币+5, ★★★很有帮助 2013-05-06 22:06:49
1 .     7,8-epoxy-1,3,11-cembratriene-15R(α),16-diol
C20H32O3     相似度:65%
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Semisynthesis of New Sarcophine Derivatives with Chemopreventive Activity
Isamu Katsuyama, Hesham Fahmy,Jordan K. Zjawiony, Sherief I. Khalifa,Raouf W. Kilada,Takao Konoshima, Midori Takasaki, and Harakuni Tokuda
Structure      13C NMR   碳谱模拟图
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2 .     3R,4R,7R,8R-diepoxy-13-keto-1R,11S-dolabell-12(18)-ene
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Dolabellane-Type Diterpenoids with Antiprotozoan Activity from a Southwestern Caribbean Gorgonian Octocoral of the Genus Eunicea
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Structure      13C NMR   碳谱模拟图
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3 .     (-)-1R,2S,7R,8R-18-keto-asperdiol
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Synthesis of cembranoid analogues and evaluation of their potential as quorum sensing inhibitors
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4 .     pacificin A
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Prenylbicyclogermacrane Diterpenoids from the Formosan Soft Coral Nephthea pacifica
Ali A. H. El-Gamal, Shang-Kwei Wang, Chang-Feng Dai, I-Gin Chen, and Chang-Yih Duh
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5 .     sargachromanol G
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Journal of Natural Products          2005          68          716-723
Chromenes from the Brown Alga Sargassum siliquastrum
Kyoung Hwa Jang, Bong Ho Lee, Byoung Wook Choi, Hyi-Seung Lee, and Jongheon Shin
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6 .     lα,l0α-epoxy-2-oxofagonene
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Erythroxan Diterpenes from Fagonia glutinosa
Maged S. Abdel-Kader, Abdallah A. Omar, and Frank R. Stermitz
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7 .     12-acetoxy-1(10)-aristolene
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Journal of Natural Products          1993          Vol 56          508
Sesquiterpenoids and Norsesquiterpenoids from the Soft Coral Lemnalia africana
Jaroslaw Jurek, Paul J. Scheuer
Structure      13C NMR   碳谱模拟图
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Y. Cai, Z.P. Chen, J.D. Phillipson
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10 .     compound 3b
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Anthony D. Wright, Gabriele M. König, Otto Sticher
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14 .     Crolechinol
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Clerodane Diterpenes from Croton Species: Distribution anda Compilation of their 13C NMR Spectral Data
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Structure      13C NMR   碳谱模拟图
--------------------------------------------------------------------------------

15 .     (3S,4S,11S,12S,1E,7E)-3,4:11,12-bisepoxycembra-1,7-diene
C20H32O2     相似度:60%
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Studies of Australian soft corals. XXXIII. New cembranoid diterpenes from a Lobophytum species
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Structure      13C NMR   碳谱模拟图
微微一笑
2楼2013-05-06 15:43:55
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milkbaby1204

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引用回帖:
2楼: Originally posted by yaolan123 at 2013-05-06 15:43:55
1 .     7,8-epoxy-1,3,11-cembratriene-15R(α),16-diol
C20H32O3     相似度:65%
Journal of Natural Products          2002          65          1809-1814
Semisynthesis of New Sarcophine Derivatives ...

是不是相似度从1到15,1的结构式最有可能的
3楼2013-05-06 22:10:50
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daliujia

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4楼2013-05-06 23:09:12
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daliujia

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5楼2013-05-06 23:11:22
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