Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
matrix-synapse
matrix-synapse
python2-matrix-synapse

Requires :

python-prometheus_client < 0.4.0
python-attrs => 17.4.0
python-prometheus_client => 0.0.18
python-pymacaroons => 0.13.0
python-service_identity => 16.0.0
python-unpaddedbase64 => 1.1.0
python-canonicaljson => 1.1.3
/usr/bin/perl
python-frozendict => 1
python-bcrypt => 3.1.0
python-sortedcontainers => 1.4.4
python-PyYAML => 3.11
python-daemonize => 2.3.1
python-psutil => 2.0.0
python-lxml => 3.5.0
python-netaddr => 0.7.18
python-treq => 15.1.0
python-six => 1.10
python-bleach => 1.4.2
python-pyasn1-modules => 0.0.7
python-msgpack => 0.5.0
python-pyOpenSSL => 16.0.0
python-jsonschema => 2.5.1
python(abi) = 2.7
python-Jinja2 => 2.9
/bin/sh
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
update-alternatives
python-PyNaCl => 1.2.1
python-Twisted => 18.7.0
matrix-angular-sdk
rpmlib(CompressedFileNames) <= 3.0.4-1
python-pyasn1 => 0.1.9
rpmlib(PartialHardlinkSets) <= 4.0.4-1
rpmlib(PayloadIsLzma) <= 4.4.6-1
python-phonenumbers => 8.2.0
systemd
/bin/bash
/usr/bin/python2
python-Pillow => 3.1.2
python-signedjson => 1.0.0
python-matrix-synapse-ldap3 => 0.1
python-psycopg2 => 2.6
shadow
python-txacme => 0.9.2
python-pysaml2 => 4.5.0

Content of RPM :
/etc/alternatives/hash_password
/etc/alternatives/log_config.yaml
/etc/alternatives/matrix-synapse.service
/etc/alternatives/rcmatrix-synapse
/etc/alternatives/register_new_matrix_user
/etc/alternatives/synapse_port_db
/etc/alternatives/synctl
/etc/synapse
/etc/synapse/log_config.yaml
/etc/synapse/log_config.yaml-2.7
/usr/bin/generate_config
/usr/bin/hash_password
/usr/bin/hash_password-2.7
/usr/bin/move_remote_media_to_new_store.py
/usr/bin/register_new_matrix_user
/usr/bin/register_new_matrix_user-2.7
/usr/bin/synapse_port_db
/usr/bin/synapse_port_db-2.7
/usr/bin/sync_room_to_group.pl
/usr/bin/synctl
/usr/bin/synctl-2.7
/usr/lib/python2.7/site-packages
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/PKG-INFO
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/SOURCES.txt
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/dependency_links.txt
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/not-zip-safe
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/requires.txt
/usr/lib/python2.7/site-packages/matrix_synapse-0.99.0-py2.7.egg-info/top_level.txt
/usr/lib/python2.7/site-packages/synapse
There is 1349 files more in these RPM.