Are there alternatives to 5H-Chromeno[2,3-b]pyridine (CAS: 261-27-8) in synthesis?

There are alternative chromene derivatives that can serve similar purposes in synthesis, such as 3H-chromen-3-one or 5H-furan[3,2-b]pyridine. These alternatives can offer similar reactivity profiles, but it is crucial to evaluate their synthetic utility, cost, and safety before substitution. Additionally, isomeric forms or analogs of 5H-Chromeno[2,3-b]pyridine may also be considered based on specific reaction conditions and desired product characteristics.