An experimental and computational investigation of the elusive anhydrous form of Oxyma-B
We report the crystal structure of the anhydrous form of Oxyma-B, a relevant racemization suppressor for peptide synthesis, solved by direct space methodologies with X-Ray Powder Diffraction data. The structure had remained elusive since only monohydrate crystals are readily obtained from slow cryst...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/338590 |
| Acesso em linha: | http://hdl.handle.net/10261/338590 https://api.elsevier.com/content/abstract/scopus_id/85175240136 |
| Access Level: | acceso abierto |
| Palavra-chave: | Oxyma-B Anhydrous http://metadata.un.org/sdg/3 Ensure healthy lives and promote well-being for all at all ages |
| Resumo: | We report the crystal structure of the anhydrous form of Oxyma-B, a relevant racemization suppressor for peptide synthesis, solved by direct space methodologies with X-Ray Powder Diffraction data. The structure had remained elusive since only monohydrate crystals are readily obtained from slow crystal growth experiments. An extensive combined experimental and computational study has allowed us to obtain deeper insight into the solid-state landscape of Oxyma-B and its tendency for hydration. The singular network of H-bonds and energetically relevant O⋯π interactions formed by the two symmetrically independent molecules of anhydrous Oxyma-B has been analysed by using the quantum theory of “atoms-in-molecules” (QTAIM) and the noncovalent interaction plot (NCIplot). |
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