How can a drain pipe in a brick wall be repaired?

I live in a 1929 brick building in which some the drain pipes (from tubs and kitchen sinks) are embedded into brick walls, two bricks thick on each side. One of these pipes has a crack in it so water floods into the basement. It needs to be repaired. It appears the only way to repair this is to gently remove the brick so that the leak can be accessed, but this is a really time consuming job. Is there any way to repair a cast iron pipe (I think it's 3") from the inside? Rerouting the drain is not an option because it would affect multiple apartments. Thanks.

I'm afraid that repairing it entails exactly what you are already doing.

At least the pipe is not covered with concrete. I think you could drill holes through the mortar then use a jig saw with a coarse blade to remove the rest of the mortar. Even if you broke brick or two, unless they were smashed to pieces they would still be usable. And, if necessary, new bricks can be obtained that match the old ones.

Diamond blade on a 4" grinder takes the mortar right out, makes a hell of a dusty mess too.

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What is the significance of staying at a Holiday Inn Express last night. Unless it is like being in Cincinatti, where you stayed at the Holiday End for a couple of weeks last night?

Apparently you don't watch TV commercials
And I've only been to Cincinnati once in my life and it was a drive through.