3.1.1 Required Parameters

-query (-q)
File containing the molecular connection table for the known fragment for which bioisosteres should be proposed. File formats are discussed in the subsequent section. Only the first conformer (query coordinates are not required) of the first molecule in the query file is used. All other conformers and molecules in the query file are disregarded.

-db (-database)
File containing 3D conformers of all fragments to consider in the search for bioisosteres of the query fragment. File formats are discussed in the subsequent section. If database files without partial charges are used, Brood will automatically generate MMFF partial charges on each fragment. Yhis doesn not appreciably slow execution. If a database file without 3D fragment coordinates is used, Brood will fail to process any fragment without coordinates.