SMILES InChI Mol PDB
Structure format transformation is a computing process based on RDKit to transform molecules between SMILES, InchI, InchIKey, Mol block, and PDB block formats. The details of this algorithm are available at dfwlab/cyclicpepedia on GitHub.
It will take some time for creating 3D conformations. The generation of PDB block requires additional stereochemical information. The larger the molecule, the longer the optimization time.