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Zombie cheminformatics: extraction and conversion of Wiswesser Line Notation (WLN) from chemical documents

Zombie cheminformatics: extraction and conversion of Wiswesser Line Notation (WLN) from chemical documents
Zombie cheminformatics: extraction and conversion of Wiswesser Line Notation (WLN) from chemical documents
Wiswesser Line Notation (WLN) is a old line notation for encoding chemical compounds for storage and processing by computers. Whilst the notation itself has long since been surpassed by SMILES and InChI, distribution of WLN during its active years was extensive. In the context of modernising chemical data, we present a comprehensive WLN parser developed using the OpenBabel toolkit, capable of translating WLN strings into various formats supported by the library. Furthermore, we have devised a specialised Finite State Machine l, constructed from the rules of WLN, enabling the recognition and extraction of chemical strings out of large bodies of text. Available open-access WLN data with corresponding SMILES or InChI notation is rare, however ChEMBL, ChemSpider and PubChem all contain WLN records which were used for conversion scoring. Our investigation revealed a notable proportion of inaccuracies within the database entries, and we have taken steps to rectify these errors whenever feasible.
Chemical Compounds, Chemical Line Notation, SMILES, Text Parsing, WLN
1758-2946
Blakey, Michael
dd52ac5f-a5f5-4698-8099-712f410fa92e
Pearman-Kanza, Samantha
b73bcf34-3ff8-4691-bd09-aa657dcff420
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Blakey, Michael
dd52ac5f-a5f5-4698-8099-712f410fa92e
Pearman-Kanza, Samantha
b73bcf34-3ff8-4691-bd09-aa657dcff420
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f

Blakey, Michael, Pearman-Kanza, Samantha and Frey, Jeremy G. (2024) Zombie cheminformatics: extraction and conversion of Wiswesser Line Notation (WLN) from chemical documents. Journal of Cheminformatics, 16 (1), [42]. (doi:10.1186/s13321-024-00831-2).

Record type: Article

Abstract

Wiswesser Line Notation (WLN) is a old line notation for encoding chemical compounds for storage and processing by computers. Whilst the notation itself has long since been surpassed by SMILES and InChI, distribution of WLN during its active years was extensive. In the context of modernising chemical data, we present a comprehensive WLN parser developed using the OpenBabel toolkit, capable of translating WLN strings into various formats supported by the library. Furthermore, we have devised a specialised Finite State Machine l, constructed from the rules of WLN, enabling the recognition and extraction of chemical strings out of large bodies of text. Available open-access WLN data with corresponding SMILES or InChI notation is rare, however ChEMBL, ChemSpider and PubChem all contain WLN records which were used for conversion scoring. Our investigation revealed a notable proportion of inaccuracies within the database entries, and we have taken steps to rectify these errors whenever feasible.

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Accepted/In Press date: 23 March 2024
Published date: 15 April 2024
Keywords: Chemical Compounds, Chemical Line Notation, SMILES, Text Parsing, WLN

Identifiers

Local EPrints ID: 489426
URI: http://eprints.soton.ac.uk/id/eprint/489426
ISSN: 1758-2946
PURE UUID: 332b118c-e01c-4ca0-96bc-d20621d06059
ORCID for Samantha Pearman-Kanza: ORCID iD orcid.org/0000-0002-4831-9489
ORCID for Jeremy G. Frey: ORCID iD orcid.org/0000-0003-0842-4302

Catalogue record

Date deposited: 24 Apr 2024 16:30
Last modified: 27 Apr 2024 02:04

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Contributors

Author: Michael Blakey
Author: Jeremy G. Frey ORCID iD

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