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Predicting Organic Reaction Outcomes with Weisfeiler-Lehman Network

This repository contains the data and codes of the paper:

Predicting Organic Reaction Outcomes with Weisfeiler-Lehman Network (NIPS 2017) PDF

Updated Version

We have updated our reaction predictor model and improved the results (shown in the table 1). The new github repo link is here: https://github.com/connorcoley/rexgen_direct. We suggest you to use the updated repo because it is written in tensorflow version 1.3.0 (rather than 0.12.0).

Data

• USPTO-15K/data.zip contains the train/dev/test split of USPTO-15K dataset used in our paper, borrowed from Coley et al. Each line in the file has two fields, separated by space:

  • Reaction smiles (products are not atom mapped)
  • Four types of reaction edits:
    1. Atoms lost Hydrogens
    2. Atoms obtained Hydrogens
    3. Deleted bonds
    4. Added bonds
    The first two subfields contains a list of atom. The last two subfields includes a list of triples in the form of (atom1-atom2-bondtype). All atoms are indicated by their atom map numbers given in the reaction smiles. See the following table for all possible bond types:

  Bond Type	Bond Name
  1.0	Single bond
  2.0	Double bond
  3.0	Triple bond
  1.5	Aromatic bond

• USPTO/data.zip includes the train/dev/test split of USPTO dataset used in our paper. It has in total 480K fully atom mapped reactions. Each line in the file has two fields, separated by space:

  • Reaction smiles (both reactants and products are atom mapped)
  • Reaction center. That is, atom pairs whose bonds in between changed in the reaction. Atoms are represented by their atom map number given in the reaction smiles.

• human/ directory contains the 80 reactions used in our human study.

Codes

Training and testing codes are in respective repositories:

• core-wln-global/ includes codes for reaction core identification (referred as global model in the paper).
• rank-wln/ includes codes for WLN + sum-pooling in the paper for candidate ranking
• rank-diff-wln/ includes codes for WL Difference Network (WLDN) for candidate ranking

Sample usage are provided in USPTO/README.md, which also applies to USPTO-15K. We used tensorflow-0.12.1 for development:

https://storage.googleapis.com/tensorflow/linux/gpu/tensorflow_gpu-0.12.1-cp27-none-linux_x86_64.whl

Contributors

Wengong Jin (wengong@csail.mit.edu)

Connor W. Coley (ccoley@mit.edu)