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Complete assignment of the NMR spectra of [D-Leu1]-microcystin-LR and analysis of its solution structure

✍ Scribed by Jan Schripsema; Denise Dagnino

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
99 KB
Volume
40
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

[D‐Leu^1^]‐microcystin‐LR is a recently discovered microcystin. We report the isolation of this microcystin analogue from a Microcystis aeruginosa strain isolated from the Lagoa de Iquipari, Rio de Janeiro, Brazil. The ^1^H and ^13^C NMR spectra were completely assigned in both MeOH‐d~4~ and DMSO‐d~6~. Further, the solution structure of this compound was investigated with the use of two‐dimensional NMR and the amide proton temperature dependence, and was compared with those of its analogs, microcystin‐RR and microcystin‐LR. Copyright © 2002 John Wiley & Sons, Ltd.

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