Can Urochrome be Cracked into Individual Pyrroles?

[JeffEvarts]

Urochrome/urobilin (structure below) is a tetrapyrrole, with the pyrroles connected with methylene (ish) bridges. I'm wondering if there's a good way to "crack" this molecule (like a hydrocarbon) along the bridges to yield the individual pyrroles. I ask because pyrrole synthesis is involved, and urochrome is abundant.

-Jeff

 

[TeethWhitener]

I'm skeptical that any cracking pathway of these heme breakdown products is going to be less involved than pyrrole synthesis.

 

[JeffEvarts]

And I didn't say it WOULD be. I'm just posing the question.