Mollenynes B-E from the marine sponge Spirastrella mollis. Band-selective heteronuclear single quantum coherence for discrimination of bromo-chloro regioisomerism in natural products.

Mollenynes B-E from the marine sponge Spirastrella mollis. Band-selective heteronuclear single quantum coherence for discrimination of bromo-chloro regioisomerism in natural products.
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Mollenynes B-E 来自海洋海绵 Spirastrella mollis。

DOI:
10.1021/jacs.5b07858
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发表时间:
2015
影响因子:
15
通讯作者:
Molinski,TadeuszF
Molinski,TadeuszF
中科院分区:
化学1区
文献类型:
--
作者:
Wang,Xiao;Duggan,BrendanM;Molinski,TadeuszF

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从巴哈马霍格斯特礁的海洋海绵Spirastrellamollili中分离得到4个新的氯溴醇类化合物,命名为mollenynes B-E。通过NMR、MS和计算方法的综合分析,确定了它们的结构。利用35 Cl/37 Cl同位素位移,发展了一种高分辨谱带选择性HSQC实验,以确定样品中纳摩尔级的13 C NMR信号,这些信号是由Cl取代的13 C产生的。
Four new chlorobromohydrins, mollenynes B–E, were isolated from the marine spongeSpirastrella molliscollected from Hogsty Reef, Bahamas. Their structures were elucidated by integrated analysis of NMR, MS, and computational methods. A high-resolution band-selective HSQC experiment was developed to identify13C NMR signals in samples at the nanomole-scale that arise from Cl-substituted13C by exploiting the35Cl/37Cl isotope shift.
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氯化甲烷中 37Cl/35Cl 诱导的 13C 同位素位移
DOI: --
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