尸化学信息学:从化学文档中提取和转换Wiswesser线标记 (WLN)
Michael Blakey1, Samantha Pearman-Kanza2, Jeremy G Frey2
1Department of Chemistry, University of Southampton, University Road, Southampton, Hampshire, SO17 1BJ, UK. M.Blakey@soton.ac.uk.
我们开发了一个Wiswesser Line Notation (WLN) 解析器和有限态机来转换和提取化学数据. 该工具通过提高遗留WLN记录的准确性和覆盖范围来实现化学数据的现代化.
科学领域:
- 计算化学是一种计算化学.
- 化学信息学 化学信息学
背景情况:
- 威斯韦塞线符号 (Wiswesser Line Notation,简称WLN) 是一种较旧的化学符号系统.
- 化学数据的现代化需要工具来处理像WLN这样的遗留格式.
- 现有的WLN数据往往不准确,缺乏现代等价值 (SMILES,InChI).
研究的目的:
- 使用OpenBabel工具包开发一个针对Wiswesser Line Notation (WLN) 的综合解析器.
- 创建一个专门的有限状态机器 (FSM) 来识别和从文本中提取WLN字符串.
- 为了解决现有的WLN数据库条目中的不准确性,并提高数据质量.
主要方法:
- 开发一个利用OpenBabel工具包进行格式转换的WLN解析器.
- 基于WLN字符串识别规则的确定性有限自动机 (DFA) 的构建.
- 使用来自ChEMBL,ChemSpider和PubChem的数据进行转换得分和错误纠正.
主要成果:
- 成功开发了用于WLN提取和转换的工具.
- 与以前的方法相比,解析器显示了更好的准确性和化学覆盖率.
- 识别和纠正WLN数据库条目中的不准确性.
结论:
- 开发的WLN解析器和DFA有效地处理了大多数WLN规则.
- 这些工具有助于化学数据的现代化,使遗留的WLN信息能够更好地处理.
- 该项目为WLN数据处理和纠正提供了一个开放式访问解决方案.
更多相关视频
09:22Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
09:04Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
Published on: April 18, 2019
相关概念视频
Aldehydes and Ketones to Alkenes: Wittig Reaction Overview
Aldehydes and Ketones to Alkenes: Wittig Reaction Mechanism
The reaction begins with the nucleophilic addition between a phosphorus ylide and the carbonyl compound. Due to its carbanionic character, phosphorus ylide acts as a strong nucleophile and attacks the electrophilic carbonyl group. This generates a charge-separated dipolar intermediate called betaine. The negatively charged oxygen atom and...
Expressing Solution Concentration
Concentrations may be quantitatively assessed using a wide variety of measurement units, each convenient for particular applications. Molarity (M) is a useful concentration unit for many applications in chemistry.
Experimental Determination of Chemical Formula
Chemical Shift: Internal References and Solvent Effects
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
Aldehydes and Ketones to Alkanes: Wolff–Kishner Reduction
