SDF format for BSP-SLIM

Hi,
I am trying to use BSP-SLIM for ligand docking, but I cant prepare ligand in .SDF file format. ChemOffice generates .SDF formatted file, but the BSP-SLIM doesn't accept it. I dont remember the exact error message but it is something within the lines "bad ligand file" or "errors in the ligand file".
The .pdb file of the ligand is attached. The molecule is expected to be in -1 net charge state. Can you please suggest converter that can generate .sdf file or convert the attached file.

Thank you

Stepan