Unfortunately, you can not get by rail without a transfer to Dresden, not from any region of Russia. From Moscow, Novosibirsk, Chelyabinsk and other cities there are trains and non-stop cars only to Berlin. Passing flights to Basel, Amsterdam, Paris, too, do not fit: Dresden is not listed in the list of intermediate stations. So you will first have to get to Warsaw, Prague or Berlin, and from there, by local railways to your destination.