Replicate MySQL INSERT to SQL Server table
This has been asked before and there are a couple of useful posts.  But the work is still being left in your hands.   You might check these posts:


richardtallent has a post: https://stackoverflow.com/questions/1455018/replication-from-mysql-to-ms-sql
AndrewSQL offered an outlined approach that got more votes at: Replicating a remote MySQL database to MS SQL Server 2008


The bottom line is that there are hints, techniques, and some tools that you might be able to marshal into an approach that suits you.  But the work is left in your hands.

In the same thread as AndrewSQL, there is a post from Gaius recommending GoldenGate for MySQL and MS SQL.  But I have no experience with it.