Syntax Error, Whats Wrong??

Hi heres my script, why does it not work?

CREATE PROC [dbo].[sp_append_CemexSQLDB_to_EQuIS5_V2]
@DBINnvarchar(50),
@DBOUTnvarchar(50)

AS

DECLARE @SQLStrVarchar(1000)

/* Start Transaction, incase of error */
BEGIN TRAN

/* Appending Ref tables */
SET @SQLStr = 'INSERT INTO ' + QUOTENAME(@DBOUT) '.dbo.rt_action_level_type'
SET @SQLStr = 'SELECT *'
SET @SQLStr = 'FROM ' + QUOTENAME(@DBIN) '.dbo.rt_action_level_type;' + ' OPTION (KEEP PLAN)'
EXEC (@SQLStr)
IF @@ERROR <> 0 GOTO ERRORHANDLER
COMMIT TRAN

RETURN 0

ERRORHANDLER:
PRINT "Unexpected Error Ocurred!"
ROLLBACK TRAN

RETURN 1
GO

The error is 'Server: Msg 170, Level 15, State 1, Procedure sp_append_SQLtables_to_NewDB_V2, Line 13
Line 13: Incorrect syntax near '.dbo.rt_action_level_type'.'


can anybody help