Help Needed With A Query

I have some data that looks like this:

field1(pk)  field2               field3

563136    199535840A    D2119562408    199615461C    D2119562806    199748610A    D2119547463    199748610A    D2368562278    200255598A    D2368562286    200255598A    D2468

Field2 can have the same value.

What I need is to return all records where field3 is not 'D2468' ever for field2.  So with the above data, I'd want the first 4 records returned, but not 5 and 6 because for those field2 is the same value and in 6, field3 is 'D2468'.

So, I can't simply say:

SELECT a.field2FROM table1 a inner join table2 b on a.field2 = b.field2    and a.field5 = b.field5where a.field3 not like 'D2468'

because it will still return record 5. 

Can anyone help me with this?  Thank you!