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Microwave-mediated synthesis of a cyclic heptapeptoid through consecutive Ugi reactions
被引:10
作者:
Barreto, Angelica de Fatima S.
[1
]
Andrade, Carlos Kleber Z.
[1
]
机构:
[1] Univ Brasilia, Inst Quim, Lab Quim Metodol & Organ Sintet, BR-70910970 Brasilia, DF, Brazil
来源:
关键词:
Cyclic peptoids;
Consecutive Ugi reactions;
Isocyanide-based multicomponent reactions (IMCRs);
Microwave-mediated reactions;
Macroheterocycles;
MULTICOMPONENT REACTIONS;
NATURAL-PRODUCTS;
PEPTOIDS;
SOLVENT;
PEPTIDE;
CHEMISTRY;
D O I:
10.1016/j.tet.2018.10.018
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The combination of consecutive Isocyanide-based Multicomponent Reactions (IMCRs) allowed the synthesis of a cyclic heptapeptoid in a reduced number of steps. Herein, we describe this efficient approach using four consecutive Ugi reactions, being three Ugi four-center, four-component reactions, and one Ugi four-center, three-component reaction. Our strategy involved eight steps of which seven in a row were microwave-assisted with reaction times of 3-5 min and yields ranging from 88 to 98%. (C) 2018 Elsevier Ltd. All rights reserved.
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页码:6861 / 6865
页数:5
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