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1 article(s) from Akasaka, Kazuaki

Nocarimidazoles C and D, antimicrobial alkanoylimidazoles from a coral-derived actinomycete Kocuria sp.: application of ¹J_C,H coupling constants for the unequivocal determination of substituted imidazoles and stereochemical diversity of anteisoalkyl chains in microbial metabolites

Md. Rokon Ul Karim,
Enjuro Harunari,
Amit Raj Sharma,
Naoya Oku,
Kazuaki Akasaka,
Daisuke Urabe,
Mada Triandala Sibero and
Yasuhiro Igarashi

Full Research Paper
Published 05 Nov 2020

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1. Graphical Abstract
2. Figure 1: Structure of the nocarimidazoles 1–4 and the bulbimidazoles 5–7.
  
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3. Figure 2: COSY and key HMBC correlations for 1 and 2.
  
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4. Scheme 1: Synthesis of the model compounds 8 and 9.
  
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5. Figure 3: ¹J_C,H coupling constant for the imidazole ring of the natural products 1 and 5 and the model compou...
  
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6. Figure 4: Determination of the absolute configuration of 1 (a), 4 (b), and 5 (c) by the Ohrui–Akasaka method.
  
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7. Figure 5: Stereochemical diversity of the anteiso-chain chirality in microbial metabolites.
  
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Graphical Abstract

Beilstein J. Org. Chem. 2020, 16, 2719–2727, doi:10.3762/bjoc.16.222

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