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afred

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[求助] 请帮忙看下我的问题,不要翻译,要答案,谢谢。 重金酬谢

1 The structures of Ursolic Acid (C30H48O3, one OH-group, 7 methyl groups) and of Tormentic Acid (C30H48O5, 3 OH groups) are wrong. The configurations of all stereogenic centers are not shown. The numbering for ursolic acid is wrong.

2. We asked you to provide all multiplets with their corresponding ranges. A multiplet is written like this: 2.34 – 2.36 (m, H–C(5)). Most of the multiplets are not provided with a range.

3.The format of the 13C-NMR data is not as we asked for. 13C-NMR data should look like this: 171.8 (C(1)); 166.8 (C(8)).
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