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The recent surge in Generative Artificial Intelligence (AI) has introduced exciting possibilities for computational chemistry. Generative AI methods have made significant progress in sampling molecular structures across chemical species,…

Statistical Mechanics · Physics 2024-09-06 Pratyush Tiwary , Lukas Herron , Richard John , Suemin Lee , Disha Sanwal , Ruiyu Wang

Retrosynthesis planning is a fundamental challenge in chemistry which aims at designing reaction pathways from commercially available starting materials to a target molecule. Each step in multi-step retrosynthesis planning requires accurate…

Quantitative Methods · Quantitative Biology 2024-03-27 Ilia Igashov , Arne Schneuing , Marwin Segler , Michael Bronstein , Bruno Correia

Template-free retrosynthesis methods treat the task as black-box sequence generation, limiting learning efficiency, while semi-template approaches rely on rigid reaction libraries that constrain generalization. We address this gap with a…

Machine Learning · Computer Science 2026-02-16 Chenguang Wang , Zihan Zhou , Lei Bai , Tianshu Yu

We propose a new model for making generalizable and diverse retrosynthetic reaction predictions. Given a target compound, the task is to predict the likely chemical reactants to produce the target. This generative task can be framed as a…

Machine Learning · Computer Science 2019-10-23 Benson Chen , Tianxiao Shen , Tommi S. Jaakkola , Regina Barzilay

Recent progress has expanded the use of large language models (LLMs) in drug discovery, including synthesis planning. However, objective evaluation of retrosynthesis performance remains limited. Existing benchmarks and metrics typically…

Retrosynthetic planning is a fundamental task in organic chemistry, yet remains challenging due to its combinatorial complexity. To address this, conventional approaches typically rely on hybrid frameworks that combine single-step…

Artificial Intelligence · Computer Science 2026-04-01 Chenyang Zuo , Siqi Fan , Yizhen Luo , Zaiqing Nie

We present an attention-based Transformer model for automatic retrosynthesis route planning. Our approach starts from reactants prediction of single-step organic reactions for given products, followed by Monte Carlo tree search-based…

Quantitative Methods · Quantitative Biology 2019-06-07 Kangjie Lin , Youjun Xu , Jianfeng Pei , Luhua Lai

Designing novel materials that possess desired properties is a central need across many manufacturing industries. Driven by that industrial need, a variety of algorithms and tools have been developed that combine AI (machine learning and…

Computational Engineering, Finance, and Science · Computer Science 2020-01-27 Seiji Takeda , Toshiyuki Hama , Hsiang-Han Hsu , Toshiyuki Yamane , Koji Masuda , Victoria A. Piunova , Dmitry Zubarev , Jed Pitera , Daniel P. Sanders , Daiju Nakano

Retrosynthesis, which aims to identify viable synthetic pathways for target molecules by decomposing them into simpler precursors, is often treated as a search problem. However, its complexity arises from multi-branched tree-structured…

Artificial Intelligence · Computer Science 2025-11-25 Chengyang Tian , Yuhang Chang , Yangpeng Zhang , Yang Liu

Synthesis planning is the process of recursively decomposing target molecules into available precursors. Computer-aided retrosynthesis can potentially assist chemists in designing synthetic routes, but at present it is cumbersome and…

Chemical Physics · Physics 2019-07-04 Shuangjia Zheng , Jiahua Rao , Zhongyue Zhang , Jun Xu , Yuedong Yang

Applications of machine learning in chemistry are often limited by the scarcity and expense of labeled data, restricting traditional supervised methods. In this work, we introduce a framework for molecular reasoning using general-purpose…

Large language models (LLM) have achieved impressive progress across a broad range of general-purpose tasks, but their effectiveness in chemistry remains limited due to scarce domain-specific datasets and the demand for precise symbolic and…

Materials discovery is decisive for tackling urgent challenges related to energy, the environment, health care and many others. In chemistry, conventional methodologies for innovation usually rely on expensive and incremental strategies to…

Machine Learning · Computer Science 2020-06-09 Daniel Schwalbe-Koda , Rafael Gómez-Bombarelli

Existing deep learning models applied to reaction prediction in organic chemistry can reach high levels of accuracy (> 90% for Natural Language Processing-based ones). With no chemical knowledge embedded than the information learnt from…

Machine Learning · Computer Science 2021-02-03 Alessandra Toniato , Philippe Schwaller , Antonio Cardinale , Joppe Geluykens , Teodoro Laino

The field of computer-aided synthesis planning (CASP) has seen rapid advancements in recent years, achieving significant progress across various algorithmic benchmarks. However, chemists often encounter numerous infeasible reactions when…

Machine Learning · Computer Science 2024-09-09 Shang Xiang , Lin Yao , Zhen Wang , Qifan Yu , Wentan Liu , Wentao Guo , Guolin Ke

Organic synthesis is one of the key stumbling blocks in medicinal chemistry. A necessary yet unsolved step in planning synthesis is solving the forward problem: given reactants and reagents, predict the products. Similar to other work, we…

Chemical Physics · Physics 2019-09-13 Philippe Schwaller , Teodoro Laino , Théophile Gaudin , Peter Bolgar , Costas Bekas , Alpha A Lee

Retrosynthesis, of which the goal is to find a set of reactants for synthesizing a target product, is an emerging research area of deep learning. While the existing approaches have shown promising results, they currently lack the ability to…

Machine Learning · Computer Science 2021-06-04 Hankook Lee , Sungsoo Ahn , Seung-Woo Seo , You Young Song , Eunho Yang , Sung-Ju Hwang , Jinwoo Shin

We describe a fully data driven model that learns to perform a retrosynthetic reaction prediction task, which is treated as a sequence-to-sequence mapping problem. The end-to-end trained model has an encoder-decoder architecture that…

Retrosynthesis analysis is a critical task in organic chemistry central to many important industries. Previously, various machine learning approaches have achieved promising results on this task by representing output molecules as strings…

Quantitative Methods · Quantitative Biology 2022-09-20 Lei Fang , Junren Li , Ming Zhao , Li Tan , Jian-Guang Lou

Retrosynthesis is one of the fundamental problems in organic chemistry. The task is to identify reactants that can be used to synthesize a specified product molecule. Recently, computer-aided retrosynthesis is finding renewed interest from…

Machine Learning · Computer Science 2020-01-07 Hanjun Dai , Chengtao Li , Connor W. Coley , Bo Dai , Le Song