Query syntax error - help

Hi,

I am using SQL query analyzer and typed the following,

Update xupaddress as A1, xupaddress as B1
SET A1.address1 = upper(B1.address1)
set A1.address2 = upper(B1.address2)
set A1.city = upper(B1.city)
set A1.state = upper(B1.state)
where A1.ProfileID = B1.ProfileID

I am getting followin error :
Server: Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'as'.

Please point out what is wrong
Thank you

Update A1
SET A1.address1 = upper(B1.address1) ,
A1.address2 = upper(B1.address2),
A1.city = upper(B1.city),
A1.state = upper(B1.state)
from xupaddress A1, xupaddress as B1
where A1.ProfileID = B1.ProfileID