Atogepant patent synthesis spiro?

I can’t determine what you mean by “Atogepant patent synthesis spiro” from the question alone. “Atogepant” is the branded migraine preventive drug, but “synthesis spiro” could refer to several different things (for example: a spirocyclic intermediate, a specific patent document describing a spiro compound used to make atogepant, or a “spiro” substructure in a claim).

To answer accurately, tell me which of these you’re looking for:

1) The patent(s) that mention a “spiro” intermediate used in atogepant synthesis
2) The specific spiro compound (structure/name) used in the synthesis
3) The meaning of “spiro” in an atogepant patent claim
4) Patent status: when atogepant patents expire, including any relevant ones tied to synthesis/intermediates
5) You have a specific patent number/application or a link and want it explained

If you paste the patent number/application (or a short excerpt/claim text that includes “spiro”), I’ll summarize what it covers and how it relates to atogepant synthesis and patent scope.