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关注：1
2013-05-23 12:21
求翻译：The UV, ESI-TOF-MS, 1 D-, 2 D- NMR spectra of compounds 1–11 (Fig. 1) were measured, and comparison with the literature data revealed the following identities: 20,40-dihydroxy-60-methoxy-30-menthylchalcone (1) (Anjaneyulu and Raju,1984),20,40-dihydroxy-60-methoxy-30,50-dimenthylchalcone(2)(Malterudetal.,1977),(2S)-7-hy是什么意思？ 待解决
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- 离问题结束还有
The UV, ESI-TOF-MS, 1 D-, 2 D- NMR spectra of compounds 1–11 (Fig. 1) were measured, and comparison with the literature data revealed the following identities: 20,40-dihydroxy-60-methoxy-30-menthylchalcone (1) (Anjaneyulu and Raju,1984),20,40-dihydroxy-60-methoxy-30,50-dimenthylchalcone(2)(Malterudetal.,1977),(2S)-7-hy
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