Fig. 2: Machine learning enantioselectivity prediction for the Cp*Co(III)/CCA-catalyzed C–H alkylation of indoles with central chirality.

a Overview of accumulated data of Cp*Co(III)/CCA-catalyzed asymmetric C−H alkylation of indoles with central chirality. b Reaction encodings and highlighted descriptors of steric and electronic effect using CCA as an example. c Regression performances of various algorithms in 10-fold cross validation. d Performance of enantioselectivity predictions using LSVR model. Source data are presented in the Source_Data.