Volume 135, Issue 51 e202313186
Forschungsartikel

Total Synthesis of the Proposed Structure of Neaumycin B

Sen Zhang

Sen Zhang

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Songming Zhang

Songming Zhang

State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, 94 Weijin Road, Tianjin, 300071 P. R. China

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Yunlong Fan

Yunlong Fan

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Xuhai Zhang

Xuhai Zhang

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Jing Chen

Jing Chen

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Chaofan Jin

Chaofan Jin

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Sisi Chen

Sisi Chen

State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, 94 Weijin Road, Tianjin, 300071 P. R. China

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Liang Wang

Corresponding Author

Liang Wang

State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, 94 Weijin Road, Tianjin, 300071 P. R. China

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Quan Zhang

Corresponding Author

Quan Zhang

State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University 38 Tongyan Road, Tianjin 300353 (P. R. China)

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Yue Chen

Corresponding Author

Yue Chen

State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, 94 Weijin Road, Tianjin, 300071 P. R. China

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First published: 27 October 2023
Citations: 2

Abstract

The total synthesis of the proposed structure of anti-glioblastoma natural product neaumycin B was achieved in 22 steps (longest linear sequence). The synthesis features HCl-mediated [6,6]-spiroketalization, a combination of Krische iridium-catalyzed crotylation, Marshall palladium-catalyzed propargylation, Fürstner nickel-catalyzed regio- and enantioselective vicinal monoprotected diol formation, Brown crotylation and asymmetric halide-aldehyde cycloaddition, so as to establish the challenging contiguous stereocenters.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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