C14h20n2o3 compound?

C14H20N2O3 is a molecular formula, not a single compound. There are many constitutional isomers that fit this formula. If you specify constraints (e.g., an aromatic ring, a lactam, a particular functional group, or a drug/natural product context), I can narrow it down or give you plausible structures.

Quick notes:
- Degree of unsaturation (DBE) for C14H20N2O3 is 6. This often corresponds to a benzene ring (4 DBE) plus two more DBEs (e.g., two carbonyls, or a second ring, etc.).
- With two nitrogens and three oxygens, common motifs include: urea/hydrazide derivatives, imide-like or lactam-containing structures, and benzamide/hydrazide-type frameworks.

If you want, tell me:
- Are you looking for known compounds with that exact formula (e.g., in PubChem)?
- Do you want a few example structural motifs that fit the formula?
- Any constraints (aromatic vs. aliphatic, presence of rings, etc.)?

I can then propose specific structures or help you search/build them.