Hi,if a compound is not in the hic-up data base of the USF (http://xray.bmc.uu.se/hicup/) I usually go to NCBI Pubchem database (TCEP e.g. at http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=119411&loc=ec_rcs) , download the sdf file, feed it into a programm that can read it and put out a pdb.
Regards, Guenter
