https://www.drupal.org/project/synhelper
https://www.drupal.org/project/cmlapi
https://www.drupal.org/project/cmlmigrations
Syncore..
Synapse import module
https://www.drupal.org/project/syncart
https://www.drupal.org/project/synpay
https://www.drupal.org/project/telega
https://www.drupal.org/project/syncabinet