} else if(dealkylmatcher.matches()) {
StereoInChIToMolecule.primeCacheForInChI(inchi);
IMolecule mol = ConverterToInChI.getMolFromInChI(inchi);
StructureConverter.configureMolecule(mol);
//System.out.println(mol.getAtomCount());
mol = (IMolecule)mol.clone();
String atomStr = dealkylmatcher.group(2);
//if(atomStr == null) return null;
int alkylSize = 0;
String groupStr = dealkylmatcher.group(3);