volume 51 issue 07 pages 1611-1622

A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine

Publication typeJournal Article
Publication date2018-12-13
scimago Q2
wos Q2
SJR0.559
CiteScore4.6
Impact factor2.3
ISSN00397881, 1437210X
Catalysis
Organic Chemistry
Abstract

A six-step semisynthetic approach towards chiral nonracemic pyrrolo-allocolchicinoids starting from naturally occurring colchicine was developed. The synthetic scheme includes an electrocyclic tropolone ring contraction to afford allocolchicinic acid followed by the Curtius reaction, giving the corresponding aniline. The Sandmeyer reaction and copper-mediated hydrazination gave hydrazine-substituted allocolchicine. This was introduced into the Fischer indole synthesis, affording libraries of regioisomeric indole-based allocolchicine congeners.

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GOST |
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GOST Copy
Schmalz H. et al. A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine // Synthesis. 2018. Vol. 51. No. 07. pp. 1611-1622.
GOST all authors (up to 50) Copy
Schmalz H., Shchegravina E., SVIRSHCHEVSKAYA E., Schmalz H. A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine // Synthesis. 2018. Vol. 51. No. 07. pp. 1611-1622.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1055/s-0037-1610673
UR - https://doi.org/10.1055/s-0037-1610673
TI - A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine
T2 - Synthesis
AU - Schmalz, H.-G.
AU - Shchegravina, Ekaterina
AU - SVIRSHCHEVSKAYA, ELENA
AU - Schmalz, Hans-Günther
PY - 2018
DA - 2018/12/13
PB - Georg Thieme Verlag KG
SP - 1611-1622
IS - 07
VL - 51
SN - 0039-7881
SN - 1437-210X
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2018_Schmalz,
author = {H.-G. Schmalz and Ekaterina Shchegravina and ELENA SVIRSHCHEVSKAYA and Hans-Günther Schmalz},
title = {A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine},
journal = {Synthesis},
year = {2018},
volume = {51},
publisher = {Georg Thieme Verlag KG},
month = {dec},
url = {https://doi.org/10.1055/s-0037-1610673},
number = {07},
pages = {1611--1622},
doi = {10.1055/s-0037-1610673}
}
MLA
Cite this
MLA Copy
Schmalz, H.-G., et al. “A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine.” Synthesis, vol. 51, no. 07, Dec. 2018, pp. 1611-1622. https://doi.org/10.1055/s-0037-1610673.