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关注：1
2013-05-23 12:21
求翻译：The structural features of the lactone ring were determined from the 1H−1H COSY spectrum based on the couplings between H2-4′ and H-3′, as well as between H-3′ and H3-9′. The HMBC correlations of CH2-4′ to δC 136.8 (C-5′), δC 100.1 (C-8a′), δC 75.0 (C-3′),and δC 19.6 (C-9′) proved the connection of the two units.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
The structural features of the lactone ring were determined from the 1H−1H COSY spectrum based on the couplings between H2-4′ and H-3′, as well as between H-3′ and H3-9′. The HMBC correlations of CH2-4′ to δC 136.8 (C-5′), δC 100.1 (C-8a′), δC 75.0 (C-3′),and δC 19.6 (C-9′) proved the connection of the two units.
问题补充： |
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2013-05-23 12:21:38
内酯环的结构特点，从基于之间H2-4 '和H -3' ，以及之间的H- 3'和H3-9 '的接头的1H - 1H COSY谱进行了测定。
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2013-05-23 12:23:18
内酯圆环的结构特点从根据联结的1H−1H舒适光谱是坚定的在H2-4 ′和H-3 ′之间，以及在H-3 ′和H3-9 ′之间。CH2-4对δC 136.8 (C-5 ′)， δC 100.1 (C-8a ′)， δC 75.0 (C-3 ′)和δC 19.6 (C-9的′的HMBC交互作用′)证实两个单位的连接。
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
从基于联轴器之间以及 H ′ 和 H3 9 ′ 之间 H2-4 ′ 和 3 ′ H-，1H−1H 舒适谱测定了内酯环的结构特点。惠丰相关性 CH2-4 ′ 至 δC 136.8 （C ′）、 δC 100.1 (C 8a′)、 δC 75.0 （C ′） 和 δC 19.6 (C-9 ′） 证明了这两个单位的连接。
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2013-05-23 12:28:18
正在翻译，请等待...
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