Cited by 373Computational Drug Discovery MethodsMachine Learning in Materials ScienceSynthesis and Characterization of Heterocyclic Compounds

De Novo Design of Bioactive Small Molecules by Artificial Intelligence

Open access
Merk, Daniel, Friedrich, Lukas, Grisoni, Francesca, Schneider, Gisbert·2018·Molecular Informatics

Abstract

Generative artificial intelligence offers a fresh view on molecular design. We present the first-time prospective application of a deep learning model for designing new druglike compounds with desired activities. For this purpose, we trained a recurrent neural network to capture the constitution of a large set of known bioactive compounds represented as SMILES strings. By transfer learning, this general model was fine-tuned on recognizing retinoid X and peroxisome proliferator-activated receptor agonists. We synthesized five top-ranking compounds designed by the generative model. Four of the compounds revealed nanomolar to low-micromolar receptor modulatory activity in cell-based assays. Apparently, the computational model intrinsically captured relevant chemical and biological knowledge without the need for explicit rules. The results of this study advocate generative artificial intelligence for prospective de novo molecular design, and demonstrate the potential of these methods for future medicinal chemistry.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/minf.201700153

Cites

19 of 19 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Merk et al. trained a recurrent neural network to capture bioactive compounds such as SMILES strings; identified compounds were synthesized and demonstrated potent receptor modulatory activity in in vitro assays.

    “Merk et al. trained a recurrent neural network to capture a large number of bioactive compounds such as SMILES strings. This model was then fine-tuned to recognize retinoid X and peroxisome proliferator-activated receptor agonists. The identified compounds were synthesized and demonstrated potent receptor modulatory activity in in vitro assays [23].”
  • DNNs provide the possibility of inverting the QSAR model (inverse QSAR).

    “They provide the possibility of inverting the QSAR model (inverse QSAR), i.e. designing molecules directly from the model (so called generative models).73”

    From QSAR without borders (2020) · cites this paper as [73]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [5]A. Gupta, A. T. Müller, B. J. H. Huisman, J. A. Fuchs, P. Schneider, G. Schneider, Mol. Inf. 2018, 37, 1700111.
  2. [14]Reaxys, Elsevier 2017; https://www.reaxys.com/.

Cited by

Sorted by citations

Authors
Merk, D., Friedrich, L., Grisoni, F., & Schneider, G.
Affiliations
ETH Zurich (CH)
Corresponding author
Schneider, Gisbert
Venue
Molecular Informatics
Publisher
Wiley
Published
2018-01
Volume
37
Issue
1-2
ISSN
  • 1868-1743 (ISSN-L)
  • 1868-1751
OpenAlex
W2784270883
Cited by
373
References
19
Citations by year
2026: 28 · 2025: 39 · 2024: 51 · 2023: 57 · 2022: 40 · 2021: 61 · 2020: 43 · 2019: 34 · 2018: 19
FWCI
29.73
Type
journal article
Language
en
Open access
Locations
  • Molecular Informatics (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by-nc)
  • ETH Zürich Research Collection
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (177477)
  • Eidgenössische Technische Hochschule Zürich (16-2 FEL-07)
Topics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and Characterization of Heterocyclic Compounds
Keywords
de novo molecular design, generative AI, deep learning, recurrent neural networks, SMILES, transfer learning, retinoid X receptor agonist, peroxisome proliferator-activated receptor agonists, drug-like molecules, bioactive compounds, receptor modulation, compound synthesis
MeSH terms
Deep Learning, Humans, Drug Design, Quantitative Structure-Activity Relationship, Retinoid X Receptors, Peroxisome Proliferator-Activated Receptors, Small Molecule Libraries, HEK293 Cells, Molecular Docking Simulation

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review