Risdiplam patent spiro?

Do you mean:
- Is risdiplam itself a spirocyclic (spiro) compound, or
- Does the risdiplam patent family include spirocyclic analogs or claims?

Short answer (based on common disclosures): risdiplam itself is not a spirocyclic molecule. The structure is not a classic spiro scaffold, and the published structure of risdiplam does not feature a spiro center. The Roche patent family around risdiplam covers a broad class of SMN2-splicing modifiers with various scaffolds, but I don’t have confirmation here that risdiplam’s own claims use a spiro motif.

If you want, I can help you verify this more precisely by checking the specific patent documents. Here’s how you can check quickly:
- Look up the risdiplam patent family in Google Patents or Espacenet (search terms: “risdiplam Roche” or “RG7916”).
- Check the independent claims for keywords like “spiro,” “spirocyclo,” or “spiro-” to see if any claims cover spirocyclic analogs.
- Compare the chemical structure shown in the example RisDiplam disclosure with any spiro scaffolds you’re interested in.

If you have a patent number or a link, paste it here and I’ll summarize whether it includes any spiro-centric claims and how risdiplam relates to those claims.