It's a way too general question to fit in this forum. You have to have a clear idea of both systems, database schemas. Then you need to define your needs precisely. From these requirements you can start to write down a general schema to fulfill your requirements, and start to code for it.
There is no way someone would do that for you, for free. And here is not the place to hire some analysts and developpers.
Please see
CodeProject QA FAQ [
^] if you want to understand why your question is not a valid one here.
The only advise I can give here is: don't try to mess with Dynamics CRM database by other means than those provided by the application itself and by the SDK. And I don't know anything about your company's database, but it may be the same for it.