for (IReaction reaction : chemModel.getReactionSet().reactions()) {
int i = 0;
IAtomContainerSet products = reaction.getProducts();
for (IAtomContainer product : products.atomContainers()) {
try {
products.replaceAtomContainer(i,
(IAtomContainer) product.clone());
} catch (CloneNotSupportedException e) {
}
i++;
}