3-[N-(4-Phthalimidobutyl)amino]-5-methoxychroman → 3{4-[N-Propyl-N-(5-methoxy-3-chromanyl)amino]butyl}-2,4-dioxo-3-azaspiro[4.5]decane

Participants

Role	Name	HCID	Charge
Reactant	3-[N-(4-Phthalimidobutyl)amino]-5-methoxychroman	HCID 10429859	—
Reactant	(+)-3-[4-[N-(5-Methoxychroman-3-Yl)Amino]Butyl]-2,4-Dioxo-3-Azaspiro[4.5]Decane	HCID 18966575	—
Product	3{4-[N-Propyl-N-(5-methoxy-3-chromanyl)amino]butyl}-2,4-dioxo-3-azaspiro[4.5]decane	HCID 18966571	72%

Using the procedure described in Example 2, but replacing the compound of Example 1 by the compound of Example 9, the expected product is obtained.