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Digital annealing optimization for natural product structure elucidation.

Chien Lee1, Pei-Hua Wang2,3,4,5, Yufeng Jane Tseng1,2,6,7

  • 1Department of Computer Science and Information Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Da'an District, Taipei City 106319, Taiwan.

Briefings in Bioinformatics
|November 18, 2024
PubMed
Summary

The digital annealer (DA) solves complex natural product structure elucidation challenges. This quantum-inspired computing approach rapidly identifies optimal molecular structures, improving drug discovery and analytical chemistry.

Keywords:
computer-aided structure elucidationdigital annealingnatural productquantum-inspired computing

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Area of Science:

  • Analytical Chemistry
  • Computational Chemistry
  • Drug Discovery

Background:

  • Natural product structure elucidation is computationally challenging due to high dimensionality and complex relationships.
  • Conventional methods struggle with complex mixtures, leading to inefficiencies and inaccuracies.
  • Nondeterministic polynomial-time (NP)-complete problems require advanced computational solutions.

Purpose of the Study:

  • To reformulate natural product structure elucidation as a Quadratic Unconstrained Binary Optimization (QUBO) problem.
  • To leverage the computational power of the digital annealer (DA) for solving these complex optimization problems.
  • To improve the precision and practicality of natural product structure elucidation.

Main Methods:

  • Utilized a digital annealer (DA) with up to 100,000 bits.
  • Reformulated the structure elucidation problem into a QUBO framework.
  • Applied the DA to mass spectrometry data from three herb species and potential scaffolds.

Main Results:

  • The DA successfully identified optimal sidechain combinations matching target molecular weights.
  • The methodology enhanced the selection of appropriate sidechains and substitution positions.
  • Solutions were generated within a 5-minute timeframe, demonstrating high efficiency.

Conclusions:

  • The digital annealer offers a transformative approach to natural product structure elucidation.
  • This quantum-inspired computing method significantly improves accuracy and speed.
  • The DA holds substantial potential for advancing analytical chemistry and accelerating drug discovery.