How to use alias column name in where clause in SQL Server

Question

When I tried to perform the below code in SQL Server 2005 I am getting the error

Invalid column name DistanceFromAddress

Code:<

Answer 1

select 
    t1.*,
    t2.brand_name,
    t3.category_name,
    if(
        t3.parent_category_id=0,
        t3.cat_key,
        (
            select 
              concat(t3b.cat_key,'/',t3.cat_key) 
            from master_category t3b 
            where t3b.category_id=t3.parent_category_id 
        )
    ) as cat_key,
    (
        select min(t4.product_MSP) 
        from trans_products t4  
        where t1.product_id=t4.product_id 
    ) as product_MSP,
    (
        select min(t4.product_MRP) 
        from trans_products t4 
        where t1.product_id=t4.product_id 
    ) as product_MRP 
from master_products t1,
master_brand t2,
master_category t3 
where t1.status=1 
and t2.status=1 
and t2.brand_id=t1.brand_id 
and t3.category_id=t1.category_id 
and t3.display_status=1 
and t1.category_id=6 
and product_MSP between '1000' and '500000'