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Correction: Enantioselective total synthesis of (−)-colchicine, (+)-demecolcinone and metacolchicine: determination of the absolute configurations of the latter two alkaloids
Bo
Chen
a,
Xin
Liu
ac,
Ya-Jian
Hu
a,
Dong-Mei
Zhang
b,
Lijuan
Deng
b,
Jieyu
Lu
a,
Long
Min
a,
Wen-Cai
Ye
b and
Chuang-Chuang
Li
a
aDepartment of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China. E-mail: ccli@sustc.edu.cn
bCollege of Pharmacy, Jinan University, Guangzhou 510632, China
cInstitute of Chinese Medical Sciences, University of Macau, Macao, China
First published on 13th December 2018
Abstract
Correction for ‘Enantioselective total synthesis of (−)-colchicine, (+)-demecolcinone and metacolchicine: determination of the absolute configurations of the latter two alkaloids’ by Chuang-Chuang Li et al., Chem. Sci., 2017, 8, 4961–4966.
The authors regret that after additional experimental work preparing compounds 4 and 26 again and studying their NMR and CD spectra it was noted that they were the same compound. In the Supplementary Information we have included additional NMR spectra to support this conclusion.
We would like to thank Professor Hoffman for his insight into the absolute structure of metacolchicine and for indicating the need for this correction to our original assignment of the compounds.1
We are now undertaking further work to prove our hypothesis of the monomer/dimer equilibrium of metacolchicine.
The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.
References
- R. W. Hoffmann, H.-G. Schmalz, U. Koert and G. K. Pierens, Chem. Sci., 2019 10.1039/c8sc90247j.
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