Divergent total synthesis of the natural antimalarial marinoquinolines A, B, C, E and unnatural analogues
摘要:
A new synthetic route to marinoquinolines was developed, allowing the synthesis of several structurally related compounds from a common key intermediate. Four natural marinoquinolines (A, B. C and E) and nine unnatural new analogues were prepared by this strategy, which features a Heck-Matsuda reaction in pure water and the Pictet-Spengler reaction as key steps. (C) 2012 Elsevier Ltd. All rights reserved.
Mo–Catalyzed One‐Pot Synthesis of
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‐Polyheterocycles from Nitroarenes and Glycols with Recycling of the Waste Reduction Byproduct. Substituent‐Tuned Photophysical Properties
作者:Raquel Hernández‐Ruiz、Rubén Rubio‐Presa、Samuel Suárez‐Pantiga、María R. Pedrosa、Manuel A. Fernández‐Rodríguez、M. José Tapia、Roberto Sanz
DOI:10.1002/chem.202102000
日期:2021.9.24
reduction–imine formation–intramolecular cyclization–oxidation for the general synthesis of a wide variety of biologically relevant N-polyheterocycles, such as quinoxaline- and quinoline-fused derivatives, and phenanthridines, is reported. A simple, easily available, and environmentally friendly dioxomolybdenum(VI) complex has proven to be a highly efficient and versatile catalyst for transforming a
作者:Lijun Ni、Ziyuan Li、Fan Wu、Jinyi Xu、Xiaoming Wu、Lingyi Kong、Hequan Yao
DOI:10.1016/j.tetlet.2011.12.124
日期:2012.3
The first concise totalsyntheses of pyrroloquinoline natural products, Marinoquinolines A–C, have been achieved in six linear steps from commercially available starting materials. The key steps were a reaction between (p-tolylsulfonyl)methylisocyanide (TosMIC) and α, β-unsaturated ester under basic condition to prepare the pyrrole moiety and Morgen-Walls reaction to construct quinoline ring.
Gold(I)/Chiral Brønsted Acid Catalyzed Enantioselective Hydroamination-Hydroarylation of Alkynes: The Effect of a Remote Hydroxyl Group on the Reactivity and Enantioselectivity
作者:Valmik S. Shinde、Manoj V. Mane、Kumar Vanka、Arijit Mallick、Nitin T. Patil
DOI:10.1002/chem.201405061
日期:2015.1.12
range of pyrrole‐based aromatic amines to give pyrrole‐embedded aza‐heterocyclic scaffolds bearing a quaternary carbon center. The presence of a hydroxylgroup in the alkyne tether turned out to be very crucial for obtaining products in high yields and enantioselectivities. The mechanism of enantioinduction was established by carefully performing experimental and computational studies.
Highly regioselective radical alkylation of 3-substituted pyrroles
作者:Oscar Guadarrama-Morales、Francisco Méndez、Luis D. Miranda
DOI:10.1016/j.tetlet.2007.04.146
日期:2007.6
It is reported that the intermolecular oxidative radical substitution on 3-substituted pyrroles gives the 2,3-disubstituted pyrroles in a highly regioselective manner. This behavior is explained on the basis of the relative stabilities of the intermediate radicals formed in the process. The methodology reported herein represents a direct entry into 2,3-disubstituted pyrroles, which might be used to
Synthesis of Pyrrolnitrin and Related Halogenated Phenylpyrroles
作者:Matthew D. Morrison、Jason J. Hanthorn、Derek A. Pratt
DOI:10.1021/ol8026957
日期:2009.3.5
A general approach to halogenated arylpyrroles, Including the antifungal natural product pyrrolnitrin, is described using newly synthesized halogenated pyrroles and 2,6-disubstituted nitrobenzenes or 2,6-disubstituted anilines.