QtPlatz using bzip2 compression for storing data into file, so that bzip2 source need to be specified for boost.
RDKit 2019_03_1 depends on zlib iostream, so that also need zlib source.
For install boost appropriate to QtPlatz with RDKit built, try following in VisualStudio 2017 Command Environment;
cd <qtplatz-source-dir>\scripts\windows windows-bootstrap.bat nmake boost boost.bat cd boost_1_67_0 boost-build.bat