Exclude Part Of The Code In A Transaction

Hello,

I have a TSQL (SQL SERVER 2005) code inside a Transaction,
I would like to exclude a piece of that code from the transaction (I do need to recovere it in the trasaction log).

For instance

BEGIN TRAN

SQL Statement 1
SQL Statement 2 -- out of the transaction
SQL Statement 3

COMMIT TRAN

I would like to exlude SQL Statement 2 (SQL statement1 and 3 must be inside the same transaction)

Is it possible? How to do it?

Thank