This work was partly supported by a research grant from the Natural Sciences and Engineering Research Council (NSERC) of Canada. We wish to thank the New Jersey Governor’s Commission on Science and Technology;
the US Army Medical Research Division;
Fort Detrick;
MD;
Merck;
Sharp and Dohme Labs;
Rahway;
NJ;
Schering Plough Corp;
Bloomlield;
Control Data Corporation and the John von Neumann SupercomputerC enter for supporting this work. We also wish to thank Tripos Associates for a grant of the Sybyl software and Chemical Design for a generous academic discount of the chemX software;