Correction: Three New Ursane-type Triterpenoids from the Stems of Saprosma merrillii. Molecules 2013, 18, 14496-14504
oleh: Jun-Yan Zhang, Wen-Hao Chen, Da-Shuai Zhang, Guang-Ying Chen, Xue-Ming Zhou, Xiao-Ping Song, Chang-Ri Han
| Format: | Article |
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| Diterbitkan: | MDPI AG 2014-11-01 |
Deskripsi
The authors wish to inform readers that there are several minor errors and omissions in the chemical structures of compounds 1–3 shown in Figure 1 of this paper [1]. Their structures were re-elucidated by detailed analysis of the NMR, MS, and X-ray crystallographic data. The E-ring of 1–3 is a five-membered ring, and the hydroxyls of 3 at C-6 and C-7 are both in a β-orientation rather than α. The corrected Figure 1 is shown below.[...]